diff --git a/spec_parser/model.py b/spec_parser/model.py
index 535e7b8..09b178e 100644
--- a/spec_parser/model.py
+++ b/spec_parser/model.py
@@ -125,6 +125,14 @@ def _tsort_recursive(inh, cn, visited, stack):
                 c.inheritance_stack.append(pcn)
                 pcn = self.classes[pcn].fqsupercname
 
+        # add direct subclasses
+        for c in self.classes.values():
+            c.direct_subclasses = []
+        for c in self.classes.values():
+            if c.fqsupercname:
+                parent = self.classes[c.fqsupercname]
+                parent.direct_subclasses.append(c.fqname)
+
         # add inherited properties to classes
         for cn in stack:
             c = self.classes[cn]
diff --git a/spec_parser/templates/mkdocs/class.md.j2 b/spec_parser/templates/mkdocs/class.md.j2
index f47c063..628a0e7 100644
--- a/spec_parser/templates/mkdocs/class.md.j2
+++ b/spec_parser/templates/mkdocs/class.md.j2
@@ -22,6 +22,13 @@
   {% endif %}
 {% endfor %}
 
+{% if direct_subclasses %}
+## Direct subclasses
+
+{% for subclass in direct_subclasses | sort %}
+- {{type_link(subclass)}}
+{% endfor %}
+{% endif %}
 {% endblock %}
 
 {% block extra %}
diff --git a/spec_parser/templates/singlefile/class.md.j2 b/spec_parser/templates/singlefile/class.md.j2
index c584ef0..fe43006 100644
--- a/spec_parser/templates/singlefile/class.md.j2
+++ b/spec_parser/templates/singlefile/class.md.j2
@@ -19,6 +19,13 @@
 {% endif %}
 {% endfor %}
 
+{% if direct_subclasses %}
+#### Direct subclasses
+
+{% for subclass in direct_subclasses | sort %}
+- {{subclass}}
+{% endfor %}
+{% endif %}
 {% endblock %}
 
 {% block extra %}
diff --git a/spec_parser/templates/tex/class.tex.j2 b/spec_parser/templates/tex/class.tex.j2
index 97568f9..3c2ec9a 100644
--- a/spec_parser/templates/tex/class.tex.j2
+++ b/spec_parser/templates/tex/class.tex.j2
@@ -20,6 +20,15 @@
 {% endfor %}
 \end{itemize}
 {% endif %}
+{%if direct_subclasses %}
+\spdxpagepart{Direct subclasses}
+\begin{itemize}
+\tightlist
+{% for subclass in direct_subclasses | sort %}
+\item {{subclass}}
+{% endfor %}
+\end{itemize}
+{% endif %}
 {% endblock %}
 
 {% block extra %}