diff --git a/Cargo.toml b/Cargo.toml
index 1aacf40..39f0242 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -44,6 +44,7 @@ fenris-sparse = { version= "0.0.2", path = "fenris-sparse" }
 fenris-geometry = { version= "^0.0.5", path = "fenris-geometry", features = [ "proptest" ] }
 fenris-optimize = { version= "0.0.2", path = "fenris-optimize" }
 fenris-quadrature = { version= "0.0.4", path = "fenris-quadrature" }
+mshio = "0.4.2"
 
 [dev-dependencies]
 fenris = { path = ".", features = [ "proptest-support" ]}
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new file mode 100644
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new file mode 100644
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new file mode 100644
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diff --git a/assets/meshes/rectangle_tri3_110.msh b/assets/meshes/rectangle_tri3_110.msh
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diff --git a/assets/meshes/square_quad4_4.msh b/assets/meshes/square_quad4_4.msh
new file mode 100644
index 0000000..79cde41
--- /dev/null
+++ b/assets/meshes/square_quad4_4.msh
@@ -0,0 +1,73 @@
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diff --git a/assets/meshes/square_quad4_79.msh b/assets/meshes/square_quad4_79.msh
new file mode 100644
index 0000000..c7965ec
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diff --git a/assets/meshes/square_quad9_4.msh b/assets/meshes/square_quad9_4.msh
new file mode 100644
index 0000000..908534a
--- /dev/null
+++ b/assets/meshes/square_quad9_4.msh
@@ -0,0 +1,105 @@
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diff --git a/assets/meshes/square_tri3_4.msh b/assets/meshes/square_tri3_4.msh
new file mode 100644
index 0000000..9598936
--- /dev/null
+++ b/assets/meshes/square_tri3_4.msh
@@ -0,0 +1,61 @@
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diff --git a/assets/meshes/square_tri6_4.msh b/assets/meshes/square_tri6_4.msh
new file mode 100644
index 0000000..f366b1a
--- /dev/null
+++ b/assets/meshes/square_tri6_4.msh
@@ -0,0 +1,77 @@
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diff --git a/src/io/mod.rs b/src/io/mod.rs
index e82dbe2..361b758 100644
--- a/src/io/mod.rs
+++ b/src/io/mod.rs
@@ -1 +1,2 @@
+pub mod msh;
 pub mod vtk;
diff --git a/src/io/msh.rs b/src/io/msh.rs
new file mode 100644
index 0000000..a3409ff
--- /dev/null
+++ b/src/io/msh.rs
@@ -0,0 +1,288 @@
+//! Support for loading Gmsh MSH 4.1 files as [`Mesh`]es.
+//!
+//! This module supports Gmsh MSH files with the file format version 4.1 as specified in the
+//! [Gmsh documentation](https://gmsh.info/doc/texinfo/gmsh.html#MSH-file-format). All element types
+//! that implement the [`MshConnectivity`] trait are supported.
+//!
+//! Example usage:
+//! ```
+//! use nalgebra::U2;
+//! use fenris::connectivity::Tri3d2Connectivity;
+//! use fenris::io::msh::load_msh_from_file;
+//!
+//! let mesh = load_msh_from_file::<f64, U2, Tri3d2Connectivity, _>(
+//!     "assets/meshes/square_tri3_4.msh").unwrap();
+//!
+//! assert_eq!(mesh.vertices().len(), 5);
+//! assert_eq!(mesh.connectivity().len(), 4);
+//! ```
+
+use crate::connectivity::{
+    Hex27Connectivity, Hex8Connectivity, Quad4d2Connectivity, Quad9d2Connectivity, Tet10Connectivity, Tet4Connectivity,
+    Tri3d2Connectivity, Tri3d3Connectivity, Tri6d2Connectivity,
+};
+use crate::mesh::Mesh;
+use eyre::{eyre, Context};
+use nalgebra::allocator::Allocator;
+use nalgebra::{DefaultAllocator, DimName, OPoint, RealField};
+use num::ToPrimitive;
+use std::path::Path;
+
+/// Loads a [`Mesh`] from a Gmsh MSH file at the given path.
+pub fn load_msh_from_file<T, D, C, P: AsRef<Path>>(file_path: P) -> eyre::Result<Mesh<T, D, C>>
+where
+    T: RealField,
+    D: DimName,
+    C: MshConnectivity,
+    DefaultAllocator: Allocator<T, D>,
+{
+    let msh_bytes = std::fs::read(file_path).wrap_err("failed to read file")?;
+    load_msh_from_bytes(&msh_bytes).wrap_err("failed to load mesh from msh file")
+}
+
+/// Loads a [`Mesh`] by parsing the given bytes as a Gmsh MSH file.
+pub fn load_msh_from_bytes<T, D, C>(bytes: &[u8]) -> eyre::Result<Mesh<T, D, C>>
+where
+    T: RealField,
+    D: DimName,
+    C: MshConnectivity,
+    DefaultAllocator: Allocator<T, D>,
+{
+    let mut msh_file = mshio::parse_msh_bytes(bytes).map_err(|e| eyre!("failed to parse msh file: {}", e))?;
+
+    let msh_nodes = msh_file
+        .data
+        .nodes
+        .take()
+        .ok_or(eyre!("MSH file does not contain nodes"))?;
+    let msh_elements = msh_file
+        .data
+        .elements
+        .take()
+        .ok_or(eyre!("MSH file does not contain elements"))?;
+
+    let mut vertices = Vec::new();
+    let mut connectivity = Vec::new();
+
+    // Ensure that at least one element block matches the target mesh connectivity
+    if !msh_elements
+        .element_blocks
+        .iter()
+        .any(|block| element_block_matches_connectivity::<C, _>(block))
+    {
+        return Err(eyre!(
+            "MSH file does not contain an element block of the requested type (type {:?} of with reference/entity dim {})",
+            C::msh_element_type(),
+            C::reference_dim()
+        ));
+    }
+
+    // Collect all mesh vertices
+    for node_block in &msh_nodes.node_blocks {
+        let block_vertices = vertices_from_node_block(node_block)?;
+        vertices.extend(block_vertices);
+    }
+
+    if vertices.len()
+        != msh_nodes
+            .num_nodes
+            .to_usize()
+            .expect("failed to convert num_nodes to usize")
+    {
+        return Err(eyre!(
+            "only {} vertices were read but msh file claims to contain {} nodes",
+            vertices.len(),
+            msh_nodes.num_nodes
+        ));
+    }
+
+    // Collect all connectivity matching the target connectivity
+    for element_block in &msh_elements.element_blocks {
+        let block_connectivity = connectivity_from_element_block(element_block)?;
+        connectivity.extend(block_connectivity);
+    }
+
+    Ok(Mesh::from_vertices_and_connectivity(vertices, connectivity))
+}
+
+/// Tries to convert a `mshio::NodeBlock` to a `Vec<OPoint<T, D>>`.
+fn vertices_from_node_block<T, D, F, I>(node_block: &mshio::NodeBlock<u64, I, F>) -> eyre::Result<Vec<OPoint<T, D>>>
+where
+    T: RealField,
+    D: DimName,
+    F: mshio::MshFloatT,
+    I: mshio::MshIntT,
+    DefaultAllocator: Allocator<T, D>,
+{
+    // Ensure that node tags are consecutive
+    if node_block.node_tags.is_some() {
+        return Err(eyre!(
+            "node block tags are not consecutive in msh file (sparse tags are not supported)"
+        ));
+    }
+
+    // Note: The following check is commented out because it can lead to missing nodes.
+    //  Probable explanation:
+    //  The MSH `node_block`'s `entity_dim` does not seem to correspond to the geometrical
+    //  dimension of the points. Rather it seems to correspond to the dimension of the "physical"
+    //  object represented by the node block.
+    //  When creating primitives in Gmsh for example, the nodes of a triangulation of a sphere are
+    //  divided into node_blocks representing its equator, surface and volume and all of them are
+    //  referenced by the volumetric elements.
+    //  In addition, all node blocks have to be read anyway in order for the global `node_tag` indexing to
+    //  work consistently.
+    // TODO: Revisit this after some more experience with loading MSH files and delete this.
+    /*
+    if node_block
+        .entity_dim
+        .to_usize()
+        .ok_or_else(|| eyre!("error converting node block entity dimension to usize"))?
+        != D::dim()
+    {
+        return Err(eyre!("node block entity does not have the right dimension for this mesh"));
+    }
+    */
+
+    let mut vertices = Vec::with_capacity(node_block.nodes.len());
+
+    // Convert MSH vertices to points
+    for node in &node_block.nodes {
+        vertices.push(point_from_msh_node(node)?);
+    }
+
+    Ok(vertices)
+}
+
+/// Tries to convert a `mshio::ElementBlock` to a `Vec<Connectivity>`.
+fn connectivity_from_element_block<C, I>(element_block: &mshio::ElementBlock<u64, I>) -> eyre::Result<Vec<C>>
+where
+    C: MshConnectivity,
+    I: mshio::MshIntT,
+{
+    // Ensure that element tags are consecutive
+    if element_block.element_tags.is_some() {
+        return Err(eyre!(
+            "element block tags are not consecutive in msh file (sparse tags are not supported)"
+        ));
+    }
+
+    if !element_block_matches_connectivity::<C, _>(element_block) {
+        // Just ignore blocks that don't match the requested connectivity
+        return Ok(Vec::new());
+    } else {
+        let mut connectivity = Vec::with_capacity(element_block.elements.len());
+        let requested_nodes = C::msh_element_type()
+            .nodes()
+            .map_err(|_| eyre!("unimplemented element type requested"))?;
+
+        for element in &element_block.elements {
+            if element.nodes.len() < requested_nodes {
+                return Err(eyre!("not enough nodes to initialize connectivity"));
+            }
+            connectivity.push(C::try_connectivity_from_msh_element(element)?);
+        }
+
+        return Ok(connectivity);
+    }
+}
+
+/// Returns whether the given element block contains elements corresponding to the specified connectivity.
+fn element_block_matches_connectivity<C, I>(element_block: &mshio::ElementBlock<u64, I>) -> bool
+where
+    C: MshConnectivity,
+    I: mshio::MshIntT,
+{
+    element_block.element_type == C::msh_element_type()
+        && element_block
+            .entity_dim
+            .to_usize()
+            .expect("failed to convert element block dimension to usize")
+            == C::reference_dim()
+}
+
+macro_rules! f_to_t {
+    ($component:expr) => {
+        T::from_f64(
+            $component
+                .to_f64()
+                .ok_or_else(|| eyre!("failed to convert coordinate to f64"))?,
+        )
+        .ok_or_else(|| eyre!("failed to convert node coordinate from f64 to target mesh real type"))?
+    };
+}
+
+fn point_from_msh_node<T, D, F>(node: &mshio::Node<F>) -> eyre::Result<OPoint<T, D>>
+where
+    T: RealField,
+    D: DimName,
+    F: mshio::MshFloatT,
+    DefaultAllocator: Allocator<T, D>,
+{
+    // TODO: Ensure that components i < D are zero?
+    let mut point = OPoint::origin();
+    point[0] = f_to_t!(node.x);
+    if D::dim() > 1 {
+        point[1] = f_to_t!(node.y);
+    }
+    if D::dim() > 2 {
+        point[2] = f_to_t!(node.z);
+    }
+
+    Ok(point)
+}
+
+/// Allows conversion from `mshio::Element`s to connectivity types used in `fenris`.
+pub trait MshConnectivity
+where
+    Self: Sized,
+{
+    /// Returns the MSH element type corresponding to this connectivity.
+    fn msh_element_type() -> mshio::ElementType;
+    /// Returns the reference dimension of this connectivity (corresponds to MSH entity dimension).
+    fn reference_dim() -> usize;
+    /// Tries to construct the element connectivity from the given MSH element.
+    fn try_connectivity_from_msh_element(element: &mshio::Element<u64>) -> eyre::Result<Self>;
+}
+
+macro_rules! impl_msh_connectivity {
+    ($connectivity:ident, $msh_type:ident, num_nodes = $num_nodes:literal) => {
+        impl MshConnectivity for $connectivity {
+            fn msh_element_type() -> mshio::ElementType {
+                mshio::ElementType::$msh_type
+            }
+
+            fn reference_dim() -> usize {
+                use crate::element::ElementConnectivity;
+                <$connectivity as ElementConnectivity<f64>>::ReferenceDim::dim()
+            }
+
+            fn try_connectivity_from_msh_element(element: &mshio::Element<u64>) -> eyre::Result<Self> {
+                assert_eq!(
+                    element.nodes.len(),
+                    $num_nodes,
+                    "number of msh element nodes have to match with connectivity"
+                );
+                let mut nodes = [0; $num_nodes];
+                for i in 0..$num_nodes {
+                    nodes[i] = element.nodes[i] as usize - 1;
+                }
+                Ok(Self(nodes))
+            }
+        }
+    };
+}
+
+impl_msh_connectivity!(Tri3d2Connectivity, Tri3, num_nodes = 3);
+impl_msh_connectivity!(Tri3d3Connectivity, Tri3, num_nodes = 3);
+impl_msh_connectivity!(Tri6d2Connectivity, Tri6, num_nodes = 6);
+impl_msh_connectivity!(Quad4d2Connectivity, Qua4, num_nodes = 4);
+impl_msh_connectivity!(Quad9d2Connectivity, Qua9, num_nodes = 9);
+impl_msh_connectivity!(Tet4Connectivity, Tet4, num_nodes = 4);
+impl_msh_connectivity!(Tet10Connectivity, Tet10, num_nodes = 10);
+impl_msh_connectivity!(Hex8Connectivity, Hex8, num_nodes = 8);
+impl_msh_connectivity!(Hex27Connectivity, Hex27, num_nodes = 27);
+
+// The following connectivities do not implement ElementConnectivity yet
+//impl_msh_connectivity!(Tri6d3Connectivity, Tri6, num_nodes = 6);
+//impl_msh_connectivity!(Quad4d3Connectivity, Qua4, num_nodes = 4);
+//impl_msh_connectivity!(Quad9d3Connectivity, Qua9, num_nodes = 9);
diff --git a/tests/unit.rs b/tests/unit.rs
index f28d4ed..598b68a 100644
--- a/tests/unit.rs
+++ b/tests/unit.rs
@@ -1 +1,21 @@
+use fenris::io::vtk::{FiniteElementMeshDataSetBuilder, VtkCellConnectivity};
+use fenris::mesh::Mesh;
+use nalgebra::allocator::Allocator;
+use nalgebra::{DefaultAllocator, DimName};
+use std::path::Path;
+
 mod unit_tests;
+
+fn export_mesh_vtk<D, C>(test_name: &str, file_stem: &str, mesh: &Mesh<f64, D, C>)
+where
+    D: DimName,
+    DefaultAllocator: Allocator<f64, D>,
+    C: VtkCellConnectivity,
+{
+    let output_path = Path::new("data/unit_tests/")
+        .join(test_name)
+        .join(format!("{file_stem}.vtu"));
+    FiniteElementMeshDataSetBuilder::from_mesh(mesh)
+        .try_export(output_path)
+        .expect("Export failure is a test failure")
+}
diff --git a/tests/unit_tests/io.rs b/tests/unit_tests/io.rs
new file mode 100644
index 0000000..a189259
--- /dev/null
+++ b/tests/unit_tests/io.rs
@@ -0,0 +1 @@
+mod msh;
diff --git a/tests/unit_tests/io/msh.rs b/tests/unit_tests/io/msh.rs
new file mode 100644
index 0000000..a462c2c
--- /dev/null
+++ b/tests/unit_tests/io/msh.rs
@@ -0,0 +1,165 @@
+use crate::export_mesh_vtk;
+use fenris::connectivity::{
+    Hex27Connectivity, Hex8Connectivity, Quad4d2Connectivity, Quad9d2Connectivity, Tet10Connectivity, Tet4Connectivity,
+    Tri3d2Connectivity, Tri3d3Connectivity, Tri6d2Connectivity,
+};
+use fenris::io::msh::load_msh_from_file;
+use insta::assert_debug_snapshot;
+use nalgebra::{U2, U3};
+
+#[test]
+fn load_msh_sphere_tet4_large() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U3, Tet4Connectivity, _>("assets/meshes/sphere_tet4_593.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 183);
+    assert_eq!(mesh.connectivity().len(), 593);
+
+    export_mesh_vtk("io_msh", "load_msh_sphere_tet4_large", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_rect_tri3d2_large() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U2, Tri3d2Connectivity, _>("assets/meshes/rectangle_tri3_110.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 70);
+    assert_eq!(mesh.connectivity().len(), 110);
+
+    export_mesh_vtk("io_msh", "load_msh_rect_tri3d2_large", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_rect_tri3d3_large() -> eyre::Result<()> {
+    // Loading a 2D triangle mesh to a 3D triangle mesh should work
+    let mesh = load_msh_from_file::<f64, U3, Tri3d3Connectivity, _>("assets/meshes/rectangle_tri3_110.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 70);
+    assert_eq!(mesh.connectivity().len(), 110);
+
+    export_mesh_vtk("io_msh", "load_msh_rect_tri3d3_large", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_square_quad4d2_large() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U2, Quad4d2Connectivity, _>("assets/meshes/square_quad4_79.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 96);
+    assert_eq!(mesh.connectivity().len(), 79);
+
+    export_mesh_vtk("io_msh", "load_msh_square_quad4d2_large", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_square_tri3d2() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U2, Tri3d2Connectivity, _>("assets/meshes/square_tri3_4.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 5);
+    assert_eq!(mesh.connectivity().len(), 4);
+
+    export_mesh_vtk("io_msh", "load_msh_square_tri3d2", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_square_tri6d2() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U2, Tri6d2Connectivity, _>("assets/meshes/square_tri6_4.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 13);
+    assert_eq!(mesh.connectivity().len(), 4);
+
+    export_mesh_vtk("io_msh", "load_msh_square_tri6d2", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_square_quad4d2() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U2, Quad4d2Connectivity, _>("assets/meshes/square_quad4_4.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 9);
+    assert_eq!(mesh.connectivity().len(), 4);
+
+    export_mesh_vtk("io_msh", "load_msh_square_quad4d2", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_square_quad9d2() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U2, Quad9d2Connectivity, _>("assets/meshes/square_quad9_4.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 25);
+    assert_eq!(mesh.connectivity().len(), 4);
+
+    export_mesh_vtk("io_msh", "load_msh_square_quad9d2", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_cube_tet4() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U3, Tet4Connectivity, _>("assets/meshes/cube_tet4_24.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 14);
+    assert_eq!(mesh.connectivity().len(), 24);
+
+    export_mesh_vtk("io_msh", "load_msh_cube_tet4", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_cube_tet10() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U3, Tet10Connectivity, _>("assets/meshes/cube_tet10_24.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 63);
+    assert_eq!(mesh.connectivity().len(), 24);
+
+    export_mesh_vtk("io_msh", "load_msh_cube_tet10", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_cube_hex8() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U3, Hex8Connectivity, _>("assets/meshes/cube_hex8_8.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 27);
+    assert_eq!(mesh.connectivity().len(), 8);
+
+    export_mesh_vtk("io_msh", "load_msh_cube_hex8", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
+
+#[test]
+fn load_msh_cube_hex27() -> eyre::Result<()> {
+    let mesh = load_msh_from_file::<f64, U3, Hex27Connectivity, _>("assets/meshes/cube_hex27_8.msh")?;
+
+    assert_eq!(mesh.vertices().len(), 125);
+    assert_eq!(mesh.connectivity().len(), 8);
+
+    export_mesh_vtk("io_msh", "load_msh_cube_hex27", &mesh);
+    assert_debug_snapshot!(mesh);
+
+    Ok(())
+}
diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_hex27.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_hex27.snap
new file mode 100644
index 0000000..aa30415
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_hex27.snap
@@ -0,0 +1,883 @@
+---
+source: tests/unit_tests/io/msh.rs
+expression: mesh
+---
+Mesh {
+    vertices: [
+        [
+            0.0,
+            0.0,
+            0.0,
+        ],
+        [
+            0.5,
+            0.0,
+            0.0,
+        ],
+        [
+            1.0,
+            0.0,
+            0.0,
+        ],
+        [
+            0.0,
+            0.5,
+            0.0,
+        ],
+        [
+            0.5,
+            0.5,
+            0.0,
+        ],
+        [
+            1.0,
+            0.5,
+            0.0,
+        ],
+        [
+            0.0,
+            1.0,
+            0.0,
+        ],
+        [
+            0.5,
+            1.0,
+            0.0,
+        ],
+        [
+            1.0,
+            1.0,
+            0.0,
+        ],
+        [
+            0.0,
+            0.0,
+            0.5,
+        ],
+        [
+            0.5,
+            0.0,
+            0.5,
+        ],
+        [
+            1.0,
+            0.0,
+            0.5,
+        ],
+        [
+            0.0,
+            0.5,
+            0.5,
+        ],
+        [
+            0.5,
+            0.5,
+            0.5,
+        ],
+        [
+            1.0,
+            0.5,
+            0.5,
+        ],
+        [
+            0.0,
+            1.0,
+            0.5,
+        ],
+        [
+            0.5,
+            1.0,
+            0.5,
+        ],
+        [
+            1.0,
+            1.0,
+            0.5,
+        ],
+        [
+            0.0,
+            0.0,
+            1.0,
+        ],
+        [
+            0.5,
+            0.0,
+            1.0,
+        ],
+        [
+            1.0,
+            0.0,
+            1.0,
+        ],
+        [
+            0.0,
+            0.5,
+            1.0,
+        ],
+        [
+            0.5,
+            0.5,
+            1.0,
+        ],
+        [
+            1.0,
+            0.5,
+            1.0,
+        ],
+        [
+            0.0,
+            1.0,
+            1.0,
+        ],
+        [
+            0.5,
+            1.0,
+            1.0,
+        ],
+        [
+            1.0,
+            1.0,
+            1.0,
+        ],
+        [
+            0.25,
+            0.0,
+            0.0,
+        ],
+        [
+            0.0,
+            0.25,
+            0.0,
+        ],
+        [
+            0.0,
+            0.0,
+            0.25,
+        ],
+        [
+            0.5,
+            0.25,
+            0.0,
+        ],
+        [
+            0.5,
+            0.0,
+            0.25,
+        ],
+        [
+            0.25,
+            0.5,
+            0.0,
+        ],
+        [
+            0.5,
+            0.5,
+            0.25,
+        ],
+        [
+            0.0,
+            0.5,
+            0.25,
+        ],
+        [
+            0.25,
+            0.0,
+            0.5,
+        ],
+        [
+            0.0,
+            0.25,
+            0.5,
+        ],
+        [
+            0.5,
+            0.25,
+            0.5,
+        ],
+        [
+            0.25,
+            0.5,
+            0.5,
+        ],
+        [
+            0.25,
+            0.25,
+            0.0,
+        ],
+        [
+            0.25,
+            0.0,
+            0.25,
+        ],
+        [
+            0.0,
+            0.25,
+            0.25,
+        ],
+        [
+            0.5,
+            0.25,
+            0.25,
+        ],
+        [
+            0.25,
+            0.5,
+            0.25,
+        ],
+        [
+            0.25,
+            0.25,
+            0.5,
+        ],
+        [
+            0.25,
+            0.25,
+            0.25,
+        ],
+        [
+            0.75,
+            0.0,
+            0.0,
+        ],
+        [
+            1.0,
+            0.25,
+            0.0,
+        ],
+        [
+            1.0,
+            0.0,
+            0.25,
+        ],
+        [
+            0.75,
+            0.5,
+            0.0,
+        ],
+        [
+            1.0,
+            0.5,
+            0.25,
+        ],
+        [
+            0.75,
+            0.0,
+            0.5,
+        ],
+        [
+            1.0,
+            0.25,
+            0.5,
+        ],
+        [
+            0.75,
+            0.5,
+            0.5,
+        ],
+        [
+            0.75,
+            0.25,
+            0.0,
+        ],
+        [
+            0.75,
+            0.0,
+            0.25,
+        ],
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diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_hex8.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_hex8.snap
new file mode 100644
index 0000000..845cf38
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_hex8.snap
@@ -0,0 +1,241 @@
+---
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diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_tet10.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_tet10.snap
new file mode 100644
index 0000000..4de9c5c
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_tet10.snap
@@ -0,0 +1,661 @@
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+                47,
+                55,
+            ],
+        ),
+        Tet10Connectivity(
+            [
+                20,
+                40,
+                35,
+                30,
+                56,
+                57,
+                53,
+                50,
+                54,
+                58,
+            ],
+        ),
+        Tet10Connectivity(
+            [
+                40,
+                3,
+                35,
+                7,
+                41,
+                37,
+                57,
+                44,
+                39,
+                18,
+            ],
+        ),
+        Tet10Connectivity(
+            [
+                40,
+                1,
+                20,
+                3,
+                42,
+                22,
+                56,
+                41,
+                24,
+                11,
+            ],
+        ),
+        Tet10Connectivity(
+            [
+                20,
+                40,
+                3,
+                35,
+                56,
+                41,
+                24,
+                53,
+                37,
+                57,
+            ],
+        ),
+        Tet10Connectivity(
+            [
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+                3,
+                20,
+                2,
+                37,
+                24,
+                53,
+                36,
+                23,
+                10,
+            ],
+        ),
+        Tet10Connectivity(
+            [
+                0,
+                20,
+                2,
+                45,
+                21,
+                23,
+                9,
+                46,
+                47,
+                51,
+            ],
+        ),
+        Tet10Connectivity(
+            [
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+                35,
+                30,
+                25,
+                57,
+                54,
+                58,
+                59,
+                60,
+                61,
+            ],
+        ),
+        Tet10Connectivity(
+            [
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+                1,
+                40,
+                30,
+                22,
+                42,
+                56,
+                50,
+                58,
+                31,
+            ],
+        ),
+        Tet10Connectivity(
+            [
+                20,
+                1,
+                30,
+                0,
+                22,
+                31,
+                50,
+                21,
+                32,
+                8,
+            ],
+        ),
+        Tet10Connectivity(
+            [
+                1,
+                40,
+                30,
+                5,
+                42,
+                58,
+                31,
+                16,
+                34,
+                43,
+            ],
+        ),
+        Tet10Connectivity(
+            [
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+                0,
+                30,
+                4,
+                46,
+                32,
+                52,
+                48,
+                33,
+                17,
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+        ),
+        Tet10Connectivity(
+            [
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+                2,
+                45,
+                6,
+                36,
+                47,
+                55,
+                38,
+                49,
+                19,
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+        ),
+        Tet10Connectivity(
+            [
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+                45,
+                25,
+                13,
+                48,
+                49,
+                28,
+                62,
+                27,
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+        ),
+        Tet10Connectivity(
+            [
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+                4,
+                25,
+                52,
+                48,
+                33,
+                60,
+                27,
+                62,
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+        ),
+        Tet10Connectivity(
+            [
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+                35,
+                25,
+                52,
+                54,
+                55,
+                62,
+                61,
+                60,
+            ],
+        ),
+        Tet10Connectivity(
+            [
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+                35,
+                25,
+                14,
+                38,
+                39,
+                29,
+                61,
+                28,
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+        ),
+        Tet10Connectivity(
+            [
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+                45,
+                35,
+                25,
+                49,
+                55,
+                38,
+                28,
+                61,
+                62,
+            ],
+        ),
+        Tet10Connectivity(
+            [
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+                7,
+                25,
+                57,
+                44,
+                39,
+                61,
+                29,
+                59,
+            ],
+        ),
+        Tet10Connectivity(
+            [
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+                4,
+                30,
+                5,
+                27,
+                33,
+                60,
+                26,
+                34,
+                12,
+            ],
+        ),
+        Tet10Connectivity(
+            [
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+                30,
+                40,
+                5,
+                60,
+                58,
+                59,
+                26,
+                43,
+                34,
+            ],
+        ),
+        Tet10Connectivity(
+            [
+                25,
+                40,
+                7,
+                5,
+                59,
+                44,
+                29,
+                26,
+                15,
+                43,
+            ],
+        ),
+    ],
+}
diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_tet4.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_tet4.snap
new file mode 100644
index 0000000..6fdbc8b
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_cube_tet4.snap
@@ -0,0 +1,272 @@
+---
+source: tests/unit_tests/io/msh.rs
+expression: mesh
+---
+Mesh {
+    vertices: [
+        [
+            0.0,
+            0.0,
+            1.0,
+        ],
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+        [
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+    connectivity: [
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+                13,
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+        Tet4Connectivity(
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+        Tet4Connectivity(
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+        Tet4Connectivity(
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+        Tet4Connectivity(
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+        Tet4Connectivity(
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+        Tet4Connectivity(
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+        Tet4Connectivity(
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+        Tet4Connectivity(
+            [
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+        Tet4Connectivity(
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+        Tet4Connectivity(
+            [
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+                1,
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+        Tet4Connectivity(
+            [
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+                1,
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+        Tet4Connectivity(
+            [
+                1,
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+        ),
+        Tet4Connectivity(
+            [
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+        ),
+        Tet4Connectivity(
+            [
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+                2,
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+        ),
+        Tet4Connectivity(
+            [
+                6,
+                4,
+                13,
+                9,
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+        ),
+        Tet4Connectivity(
+            [
+                10,
+                13,
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+        ),
+        Tet4Connectivity(
+            [
+                13,
+                10,
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+            ],
+        ),
+        Tet4Connectivity(
+            [
+                7,
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+                9,
+            ],
+        ),
+        Tet4Connectivity(
+            [
+                6,
+                13,
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+            ],
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+        Tet4Connectivity(
+            [
+                11,
+                12,
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+                9,
+            ],
+        ),
+        Tet4Connectivity(
+            [
+                9,
+                4,
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+        ),
+        Tet4Connectivity(
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+                5,
+            ],
+        ),
+        Tet4Connectivity(
+            [
+                9,
+                12,
+                7,
+                5,
+            ],
+        ),
+    ],
+}
diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_rect_tri3d2_large.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_rect_tri3d2_large.snap
new file mode 100644
index 0000000..a4c72bf
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_rect_tri3d2_large.snap
@@ -0,0 +1,1060 @@
+---
+source: tests/unit_tests/io/msh.rs
+expression: mesh
+---
+Mesh {
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diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_rect_tri3d3_large.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_rect_tri3d3_large.snap
new file mode 100644
index 0000000..24e8f23
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_rect_tri3d3_large.snap
@@ -0,0 +1,1130 @@
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diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_sphere_tet4_large.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_sphere_tet4_large.snap
new file mode 100644
index 0000000..4026026
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_sphere_tet4_large.snap
@@ -0,0 +1,5669 @@
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diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_quad4d2.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_quad4d2.snap
new file mode 100644
index 0000000..6282191
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_quad4d2.snap
@@ -0,0 +1,78 @@
+---
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diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_quad4d2_large.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_quad4d2_large.snap
new file mode 100644
index 0000000..1fa4cde
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_quad4d2_large.snap
@@ -0,0 +1,1026 @@
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+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                16,
+                17,
+                88,
+                77,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                9,
+                10,
+                87,
+                76,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                43,
+                26,
+                27,
+                85,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                19,
+                42,
+                88,
+                18,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                26,
+                43,
+                89,
+                25,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                12,
+                41,
+                87,
+                11,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                5,
+                40,
+                86,
+                4,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                59,
+                67,
+                90,
+                81,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                23,
+                24,
+                89,
+                79,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                93,
+                91,
+                35,
+                69,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                58,
+                93,
+                69,
+                38,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                80,
+                90,
+                67,
+                71,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                75,
+                92,
+                35,
+                91,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                93,
+                53,
+                75,
+                91,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                54,
+                53,
+                93,
+                58,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                55,
+                57,
+                92,
+                75,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                35,
+                92,
+                94,
+                73,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                5,
+                73,
+                94,
+                40,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                33,
+                46,
+                95,
+                74,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                83,
+                76,
+                87,
+                41,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                31,
+                86,
+                40,
+                78,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                72,
+                77,
+                88,
+                42,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                64,
+                79,
+                89,
+                43,
+            ],
+        ),
+        Quad4d2Connectivity(
+            [
+                92,
+                57,
+                82,
+                94,
+            ],
+        ),
+    ],
+}
diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_quad9d2.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_quad9d2.snap
new file mode 100644
index 0000000..e8f241e
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_quad9d2.snap
@@ -0,0 +1,162 @@
+---
+source: tests/unit_tests/io/msh.rs
+expression: mesh
+---
+Mesh {
+    vertices: [
+        [
+            0.0,
+            0.0,
+        ],
+        [
+            0.5,
+            0.0,
+        ],
+        [
+            0.5,
+            0.5,
+        ],
+        [
+            0.0,
+            0.5,
+        ],
+        [
+            0.25,
+            0.0,
+        ],
+        [
+            0.125,
+            0.0,
+        ],
+        [
+            0.375,
+            0.0,
+        ],
+        [
+            0.5,
+            0.25,
+        ],
+        [
+            0.5,
+            0.125,
+        ],
+        [
+            0.5,
+            0.375,
+        ],
+        [
+            0.25,
+            0.5,
+        ],
+        [
+            0.375,
+            0.5,
+        ],
+        [
+            0.125,
+            0.5,
+        ],
+        [
+            0.0,
+            0.25,
+        ],
+        [
+            0.0,
+            0.375,
+        ],
+        [
+            0.0,
+            0.125,
+        ],
+        [
+            0.25,
+            0.25,
+        ],
+        [
+            0.25,
+            0.125,
+        ],
+        [
+            0.125,
+            0.25,
+        ],
+        [
+            0.125,
+            0.125,
+        ],
+        [
+            0.375,
+            0.25,
+        ],
+        [
+            0.375,
+            0.125,
+        ],
+        [
+            0.25,
+            0.375,
+        ],
+        [
+            0.375,
+            0.375,
+        ],
+        [
+            0.125,
+            0.375,
+        ],
+    ],
+    connectivity: [
+        Quad9d2Connectivity(
+            [
+                0,
+                4,
+                16,
+                13,
+                5,
+                17,
+                18,
+                15,
+                19,
+            ],
+        ),
+        Quad9d2Connectivity(
+            [
+                4,
+                1,
+                7,
+                16,
+                6,
+                8,
+                20,
+                17,
+                21,
+            ],
+        ),
+        Quad9d2Connectivity(
+            [
+                16,
+                7,
+                2,
+                10,
+                20,
+                9,
+                11,
+                22,
+                23,
+            ],
+        ),
+        Quad9d2Connectivity(
+            [
+                13,
+                16,
+                10,
+                3,
+                18,
+                22,
+                12,
+                14,
+                24,
+            ],
+        ),
+    ],
+}
diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_tri3d2.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_tri3d2.snap
new file mode 100644
index 0000000..776bb4a
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_tri3d2.snap
@@ -0,0 +1,58 @@
+---
+source: tests/unit_tests/io/msh.rs
+expression: mesh
+---
+Mesh {
+    vertices: [
+        [
+            0.0,
+            0.0,
+        ],
+        [
+            0.5,
+            0.0,
+        ],
+        [
+            0.5,
+            0.5,
+        ],
+        [
+            0.0,
+            0.5,
+        ],
+        [
+            0.25,
+            0.25,
+        ],
+    ],
+    connectivity: [
+        Tri3d2Connectivity(
+            [
+                1,
+                4,
+                0,
+            ],
+        ),
+        Tri3d2Connectivity(
+            [
+                0,
+                4,
+                3,
+            ],
+        ),
+        Tri3d2Connectivity(
+            [
+                2,
+                4,
+                1,
+            ],
+        ),
+        Tri3d2Connectivity(
+            [
+                3,
+                4,
+                2,
+            ],
+        ),
+    ],
+}
diff --git a/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_tri6d2.snap b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_tri6d2.snap
new file mode 100644
index 0000000..db8410d
--- /dev/null
+++ b/tests/unit_tests/io/snapshots/unit__unit_tests__io__msh__load_msh_square_tri6d2.snap
@@ -0,0 +1,102 @@
+---
+source: tests/unit_tests/io/msh.rs
+expression: mesh
+---
+Mesh {
+    vertices: [
+        [
+            0.0,
+            0.0,
+        ],
+        [
+            0.5,
+            0.0,
+        ],
+        [
+            0.5,
+            0.5,
+        ],
+        [
+            0.0,
+            0.5,
+        ],
+        [
+            0.25,
+            0.0,
+        ],
+        [
+            0.5,
+            0.25,
+        ],
+        [
+            0.25,
+            0.5,
+        ],
+        [
+            0.0,
+            0.25,
+        ],
+        [
+            0.25,
+            0.25,
+        ],
+        [
+            0.375,
+            0.125,
+        ],
+        [
+            0.125,
+            0.125,
+        ],
+        [
+            0.125,
+            0.375,
+        ],
+        [
+            0.375,
+            0.375,
+        ],
+    ],
+    connectivity: [
+        Tri6d2Connectivity(
+            [
+                1,
+                8,
+                0,
+                9,
+                10,
+                4,
+            ],
+        ),
+        Tri6d2Connectivity(
+            [
+                0,
+                8,
+                3,
+                10,
+                11,
+                7,
+            ],
+        ),
+        Tri6d2Connectivity(
+            [
+                2,
+                8,
+                1,
+                12,
+                9,
+                5,
+            ],
+        ),
+        Tri6d2Connectivity(
+            [
+                3,
+                8,
+                2,
+                11,
+                12,
+                6,
+            ],
+        ),
+    ],
+}
diff --git a/tests/unit_tests/mesh/refinement.rs b/tests/unit_tests/mesh/refinement.rs
index 1bf1b56..1e40947 100644
--- a/tests/unit_tests/mesh/refinement.rs
+++ b/tests/unit_tests/mesh/refinement.rs
@@ -1,19 +1,9 @@
+use crate::export_mesh_vtk;
 use fenris::connectivity::Tri3d2Connectivity;
-use fenris::io::vtk::FiniteElementMeshDataSetBuilder;
 use fenris::mesh::refinement::{refine_uniformly, refine_uniformly_repeat};
-use fenris::mesh::{Mesh, TriangleMesh2d};
+use fenris::mesh::Mesh;
 use insta::assert_debug_snapshot;
 use nalgebra::point;
-use std::path::Path;
-
-fn export_mesh_vtk(test_name: &str, file_stem: &str, mesh: &TriangleMesh2d<f64>) {
-    let output_path = Path::new("data/unit_tests/")
-        .join(test_name)
-        .join(format!("{file_stem}.vtu"));
-    FiniteElementMeshDataSetBuilder::from_mesh(mesh)
-        .try_export(output_path)
-        .expect("Export failure is a test failure")
-}
 
 #[test]
 fn uniform_refinement_tri3d2() {
diff --git a/tests/unit_tests/mod.rs b/tests/unit_tests/mod.rs
index 6292fc9..f20af13 100644
--- a/tests/unit_tests/mod.rs
+++ b/tests/unit_tests/mod.rs
@@ -3,6 +3,7 @@ mod basis;
 mod element;
 mod error;
 mod fe_mesh;
+mod io;
 mod mesh;
 mod quadrature;
 mod reorder;