diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/fixture.php.inc b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/fixture.php.inc
new file mode 100644
index 00000000000..866d950a398
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/fixture.php.inc
@@ -0,0 +1,52 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class RemoveDeadIfBlock
+{
+    public function run($condition)
+    {
+        if ($value) {
+        } elseif ($differentValue) {
+        } else {
+        }
+
+        if ($differentValue) {
+            echo 'different';
+        } elseif ($value) {
+        } else {
+        }
+
+        if ($differentValue) {
+        } elseif ($value) {
+            echo 'value';
+        } else {
+        }
+
+        return $differentValue;
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class RemoveDeadIfBlock
+{
+    public function run($condition)
+    {
+        if ($differentValue) {
+            echo 'different';
+        }
+
+        if (!$differentValue && $value) {
+            echo 'value';
+        }
+
+        return $differentValue;
+    }
+}
+
+?>
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_else_no_stmt.php.inc b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_else_no_stmt.php.inc
new file mode 100644
index 00000000000..fd98c086a0a
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_else_no_stmt.php.inc
@@ -0,0 +1,32 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class IfElseNoStmt
+{
+    public function run($condition)
+    {
+        if ($condition) {
+            echo "something";
+        } else {
+        }
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class IfElseNoStmt
+{
+    public function run($condition)
+    {
+        if ($condition) {
+            echo "something";
+        }
+    }
+}
+
+?>
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_elseif_no_stmt.php.inc b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_elseif_no_stmt.php.inc
new file mode 100644
index 00000000000..bc7334cbb66
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_elseif_no_stmt.php.inc
@@ -0,0 +1,36 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class IfElseNoStmt
+{
+    public function run($condition)
+    {
+        if ($condition) {
+            echo "something";
+        } elseif (!$condition) {
+        } elseif (true) {
+            echo "global";
+        }
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class IfElseNoStmt
+{
+    public function run($condition)
+    {
+        if ($condition) {
+            echo "something";
+        } elseif (true) {
+            echo "global";
+        }
+    }
+}
+
+?>
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_no_stmt_with_else.php.inc b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_no_stmt_with_else.php.inc
new file mode 100644
index 00000000000..41f562f1c9e
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_no_stmt_with_else.php.inc
@@ -0,0 +1,32 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class IfNoStmtWithElse
+{
+    public function run($condition)
+    {
+        if ($condition) {
+        } else {
+            echo "something";
+        }
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class IfNoStmtWithElse
+{
+    public function run($condition)
+    {
+        if (!$condition) {
+            echo "something";
+        }
+    }
+}
+
+?>
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_no_stmt_with_else_no_stmt.php.inc b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_no_stmt_with_else_no_stmt.php.inc
new file mode 100644
index 00000000000..3969df58f78
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/if_no_stmt_with_else_no_stmt.php.inc
@@ -0,0 +1,28 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class IfNoStmtWithElseNoStmt
+{
+    public function run($condition)
+    {
+        if ($condition) {
+        } else {
+        }
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class IfNoStmtWithElseNoStmt
+{
+    public function run($condition)
+    {
+    }
+}
+
+?>
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/side_effect_checks.php.inc b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/side_effect_checks.php.inc
new file mode 100644
index 00000000000..1d8200fa22f
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/side_effect_checks.php.inc
@@ -0,0 +1,33 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class SideEffectChecks
+{
+    public function run()
+    {
+        if (10) {
+        }
+
+        if (true) {
+        }
+
+        if (5 + 10) {
+        }
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class SideEffectChecks
+{
+    public function run()
+    {
+    }
+}
+
+?>
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_if_comment.php.inc b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_if_comment.php.inc
new file mode 100644
index 00000000000..a8bbd1cf214
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_if_comment.php.inc
@@ -0,0 +1,19 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class MergeComments
+{
+    public function run($b)
+    {
+        // toplevel
+        if ($b) {
+        } elseif (!$b) {
+            // first innner
+            f();
+            // second inner
+        }
+    }
+}
+
+?>
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_property_fetch.php.inc b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_property_fetch.php.inc
new file mode 100644
index 00000000000..b5ac0366184
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_property_fetch.php.inc
@@ -0,0 +1,17 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class SkipPropertyFetch
+{
+    public function run($obj, $condition)
+    {
+        if ($condition) {
+            echo '1';
+        } elseif ($obj->v) {
+            echo '2';
+        }
+    }
+}
+
+?>
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_used_in_next_stmt.php.inc b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_used_in_next_stmt.php.inc
new file mode 100644
index 00000000000..83fefcf31ed
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_used_in_next_stmt.php.inc
@@ -0,0 +1,19 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class SkipUsedInNextStmt
+{
+    public function run($resultLen, $result, $decimalSep)
+    {
+        for ($i = $resultLen - 1; $i >= 0 && $result[$i] === '0'; $i--) {
+            ;
+        }
+
+        if ($i >= 0 && $result[$i] === $decimalSep) {
+          $i--;
+        }
+
+        $result = substr($result, 0, $i + 1);
+    }
+}
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_used_in_next_stmt2.php.inc b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_used_in_next_stmt2.php.inc
new file mode 100644
index 00000000000..7479fe30f59
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/Fixture/skip_used_in_next_stmt2.php.inc
@@ -0,0 +1,19 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\Fixture;
+
+class SkipUsedInNextStmt2
+{
+    public function run($resultLen, $result, $decimalSep)
+    {
+        foreach ($result as $i => $value) {
+            ;
+        }
+
+        if ($i >= 0 && $result[$i] === $decimalSep) {
+          $i--;
+        }
+
+        $result = substr($result, 0, $i + 1);
+    }
+}
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/RemoveDeadIfBlockRectorTest.php b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/RemoveDeadIfBlockRectorTest.php
new file mode 100644
index 00000000000..60d139a16de
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/RemoveDeadIfBlockRectorTest.php
@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector;
+
+use Iterator;
+use PHPUnit\Framework\Attributes\DataProvider;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+final class RemoveDeadIfBlockRectorTest extends AbstractRectorTestCase
+{
+    #[DataProvider('provideData')]
+    public function test(string $filePath): void
+    {
+        $this->doTestFile($filePath);
+    }
+
+    public static function provideData(): Iterator
+    {
+        return self::yieldFilesFromDirectory(__DIR__ . '/Fixture');
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        return __DIR__ . '/config/configured_rule.php';
+    }
+}
diff --git a/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/config/configured_rule.php b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/config/configured_rule.php
new file mode 100644
index 00000000000..5cd1fadda4c
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/If_/RemoveDeadIfBlockRector/config/configured_rule.php
@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\DeadCode\Rector\If_\RemoveDeadIfBlockRector;
+
+return RectorConfig::configure()
+    ->withRules([RemoveDeadIfBlockRector::class]);
diff --git a/rules/DeadCode/Rector/If_/RemoveDeadIfBlockRector.php b/rules/DeadCode/Rector/If_/RemoveDeadIfBlockRector.php
new file mode 100644
index 00000000000..87456f68511
--- /dev/null
+++ b/rules/DeadCode/Rector/If_/RemoveDeadIfBlockRector.php
@@ -0,0 +1,156 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\DeadCode\Rector\If_;
+
+use PhpParser\Node;
+use PhpParser\Node\Expr\BinaryOp\BooleanAnd;
+use PhpParser\Node\Stmt\Else_;
+use PhpParser\Node\Stmt\If_;
+use PhpParser\NodeVisitor;
+use Rector\DeadCode\SideEffect\SideEffectNodeDetector;
+use Rector\EarlyReturn\NodeTransformer\ConditionInverter;
+use Rector\Rector\AbstractRector;
+use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+
+/**
+ * @see \Rector\Tests\DeadCode\Rector\If_\RemoveDeadIfBlockRector\RemoveDeadIfBlockRectorTest
+ */
+final class RemoveDeadIfBlockRector extends AbstractRector
+{
+    public function __construct(
+        private readonly ConditionInverter $conditionInverter,
+        private readonly SideEffectNodeDetector $sideEffectNodeDetector,
+    ) {
+    }
+
+    public function getRuleDefinition(): RuleDefinition
+    {
+        return new RuleDefinition(
+            'Remove if, elseif, and else blocks that do not do anything',
+            [
+                new CodeSample(
+                    <<<'CODE_SAMPLE'
+class SomeClass
+{
+    public function run($value, $differentValue)
+    {
+        if ($value) {
+        } elseif ($differentValue) {
+        } else {
+        }
+
+        if ($differentValue) {
+            echo 'different';
+        } elseif ($value) {
+        } else {
+        }
+
+        if ($differentValue) {
+        } elseif ($value) {
+            echo 'value';
+        } else {
+        }
+
+        return $differentValue;
+    }
+}
+CODE_SAMPLE
+                    ,
+                    <<<'CODE_SAMPLE'
+class SomeClass
+{
+    public function run($value, $differentValue)
+    {
+        if ($differentValue) {
+            echo 'different';
+        }
+
+        if (!$differentValue && $value) {
+            echo 'value';
+        }
+
+        return $differentValue;
+    }
+}
+CODE_SAMPLE
+                ),
+            ]
+        );
+    }
+
+    /**
+     * @return array<class-string<Node>>
+     */
+    public function getNodeTypes(): array
+    {
+        return [If_::class];
+    }
+
+    /**
+     * @param If_ $node
+     * @return NodeVisitor::REMOVE_NODE|null|If_
+     */
+    public function refactor(Node $node): int|null|If_
+    {
+        if ($node->else instanceof Else_ && $node->else->stmts === []) {
+            $node->else = null;
+            return $this->refactor($node) ?? $node;
+        }
+
+        if ($node->elseifs !== []) {
+            foreach ($node->elseifs as $elseif) {
+                $keep_elseifs = array_filter(
+                    $node->elseifs,
+                    fn ($elseif) => $elseif->stmts !== [] || $this->sideEffectNodeDetector->detect($elseif->cond)
+                );
+                if (count($node->elseifs) !== count($keep_elseifs)) {
+                    $node->elseifs = $keep_elseifs;
+                    return $this->refactor($node) ?? $node;
+                }
+            }
+        }
+
+        if ($node->stmts !== []) {
+            return null;
+        }
+
+        // Skip commented blocks because we can't know
+        // if the comment will make sense after merging.
+        if ($node->getComments() !== []) {
+            return null;
+        }
+
+        if ($this->sideEffectNodeDetector->detect($node->cond)) {
+            return null;
+        }
+
+        // When the if body is blank but it has an elseif,
+        // merge the negated if condition with the elseif condition
+        if ($node->elseifs !== []) {
+            $firstElseIf = $node->elseifs[0];
+            $cond = new BooleanAnd(
+                $this->conditionInverter->createInvertedCondition($node->cond),
+                $firstElseIf->cond
+            );
+            $if = new If_($cond, [
+                'stmts' => $firstElseIf->stmts,
+            ]);
+            if (count($node->elseifs) > 1) {
+                $if->elseifs = \array_slice($node->elseifs, 1);
+            }
+            return $this->refactor($if) ?? $if;
+        }
+
+        if ($node->else instanceof Else_) {
+            $node->cond = $this->conditionInverter->createInvertedCondition($node->cond);
+            $node->stmts = $node->else->stmts;
+            $node->else = null;
+            return $node;
+        }
+
+        return NodeVisitor::REMOVE_NODE;
+    }
+}
diff --git a/src/Config/Level/DeadCodeLevel.php b/src/Config/Level/DeadCodeLevel.php
index 71c5f42f0ae..67c47c30c88 100644
--- a/src/Config/Level/DeadCodeLevel.php
+++ b/src/Config/Level/DeadCodeLevel.php
@@ -40,6 +40,7 @@
 use Rector\DeadCode\Rector\FunctionLike\RemoveDeadReturnRector;
 use Rector\DeadCode\Rector\If_\ReduceAlwaysFalseIfOrRector;
 use Rector\DeadCode\Rector\If_\RemoveAlwaysTrueIfConditionRector;
+use Rector\DeadCode\Rector\If_\RemoveDeadIfBlockRector;
 use Rector\DeadCode\Rector\If_\RemoveDeadInstanceOfRector;
 use Rector\DeadCode\Rector\If_\RemoveTypedPropertyDeadInstanceOfRector;
 use Rector\DeadCode\Rector\If_\RemoveUnusedNonEmptyArrayBeforeForeachRector;
@@ -124,6 +125,7 @@ final class DeadCodeLevel
 
         RemoveDeadCatchRector::class,
         RemoveDeadTryCatchRector::class,
+        RemoveDeadIfBlockRector::class,
         RemoveDeadIfForeachForRector::class,
         RemoveConditionExactReturnRector::class,
         RemoveDeadStmtRector::class,