diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ec95138..c0dff8d0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,8 @@
 
 ## 2.1.1 under development
 
-- no changes in this release.
+- Bug #748: Fix hook processing for nested objects that implement `PostValidationHookInterface` when `Nested` rule with
+  specified rules is used (@DAGpro)
 
 ## 2.1.0 September 12, 2024
 
diff --git a/src/Rule/NestedHandler.php b/src/Rule/NestedHandler.php
index 0c754ca9..75ac7566 100644
--- a/src/Rule/NestedHandler.php
+++ b/src/Rule/NestedHandler.php
@@ -8,6 +8,7 @@
 use Yiisoft\Strings\StringHelper;
 use Yiisoft\Validator\DataSet\ObjectDataSet;
 use Yiisoft\Validator\Exception\UnexpectedRuleException;
+use Yiisoft\Validator\PostValidationHookInterface;
 use Yiisoft\Validator\Result;
 use Yiisoft\Validator\RuleHandlerInterface;
 use Yiisoft\Validator\RuleInterface;
@@ -112,6 +113,10 @@ public function validate(mixed $value, RuleInterface $rule, ValidationContext $c
             }
         }
 
+        if ($value instanceof PostValidationHookInterface) {
+            $value->processValidationResult($compoundResult);
+        }
+
         return $compoundResult;
     }
 }
diff --git a/tests/Rule/NestedTest.php b/tests/Rule/NestedTest.php
index 2bf5b2f9..cba3175a 100644
--- a/tests/Rule/NestedTest.php
+++ b/tests/Rule/NestedTest.php
@@ -12,12 +12,13 @@
 use Yiisoft\Validator\DataSetInterface;
 use Yiisoft\Validator\Error;
 use Yiisoft\Validator\Helper\RulesDumper;
+use Yiisoft\Validator\PostValidationHookInterface;
 use Yiisoft\Validator\Result;
-use Yiisoft\Validator\Rule\FilledAtLeast;
 use Yiisoft\Validator\Rule\BooleanValue;
 use Yiisoft\Validator\Rule\Callback;
 use Yiisoft\Validator\Rule\Count;
 use Yiisoft\Validator\Rule\Each;
+use Yiisoft\Validator\Rule\FilledAtLeast;
 use Yiisoft\Validator\Rule\In;
 use Yiisoft\Validator\Rule\Integer;
 use Yiisoft\Validator\Rule\Length;
@@ -26,6 +27,7 @@
 use Yiisoft\Validator\Rule\Number;
 use Yiisoft\Validator\Rule\Regex;
 use Yiisoft\Validator\Rule\Required;
+use Yiisoft\Validator\Rule\StringValue;
 use Yiisoft\Validator\RuleInterface;
 use Yiisoft\Validator\RulesProviderInterface;
 use Yiisoft\Validator\Tests\Rule\Base\DifferentRuleInHandlerTestTrait;
@@ -36,6 +38,7 @@
 use Yiisoft\Validator\Tests\Support\Data\EachNestedObjects\Foo;
 use Yiisoft\Validator\Tests\Support\Data\InheritAttributesObject\InheritAttributesObject;
 use Yiisoft\Validator\Tests\Support\Data\IteratorWithBooleanKey;
+use Yiisoft\Validator\Tests\Support\Data\NestedHookProvider\NestedObjectWithPostValidationHook;
 use Yiisoft\Validator\Tests\Support\Data\ObjectWithDifferentPropertyVisibility;
 use Yiisoft\Validator\Tests\Support\Data\ObjectWithNestedObject;
 use Yiisoft\Validator\Tests\Support\Helper\OptionsHelper;
@@ -860,6 +863,65 @@ public function testWithOtherNestedAndEach(
         $this->assertSame($expectedErrorMessagesIndexedByPath, $result->getErrorMessagesIndexedByPath());
     }
 
+    public function testNestedPostValidationHook(): void
+    {
+        $object = new class () implements PostValidationHookInterface {
+            #[Required]
+            #[StringValue]
+            #[Length(min: 6)]
+            public string $name = '';
+
+            #[Nested(NestedObjectWithPostValidationHook::class)]
+            public NestedObjectWithPostValidationHook $nested;
+
+            public ?Result $validationResult = null;
+
+            public function __construct()
+            {
+                $this->nested = new NestedObjectWithPostValidationHook();
+            }
+
+            public function processValidationResult(Result $result): void
+            {
+                $this->validationResult = $result;
+            }
+        };
+
+        (new Validator())->validate($object);
+
+        $this->assertInstanceOf(Result::class, $object->validationResult);
+        $this->assertInstanceOf(Result::class, $object->nested->validationResult);
+        $this->assertInstanceOf(Result::class, $object->nested->secondNested->validationResult);
+        $this->assertSame(
+            [
+                'name',
+                'nested.firstString',
+                'nested.firstArray.0',
+                'nested.firstArray.1',
+                'nested.secondNested.secondInt',
+                'nested.secondNested.secondString',
+            ],
+            array_keys($object->validationResult->getFirstErrorMessagesIndexedByPath())
+        );
+        $this->assertSame(
+            [
+                'firstString',
+                'firstArray.0',
+                'firstArray.1',
+                'secondNested.secondInt',
+                'secondNested.secondString',
+            ],
+            array_keys($object->nested->validationResult->getFirstErrorMessagesIndexedByPath())
+        );
+        $this->assertSame(
+            [
+                'secondInt',
+                'secondString',
+            ],
+            array_keys($object->nested->secondNested->validationResult->getFirstErrorMessagesIndexedByPath())
+        );
+    }
+
     public function dataValidationPassed(): array
     {
         return [
diff --git a/tests/Support/Data/NestedHookProvider/NestedObjectWithPostValidationHook.php b/tests/Support/Data/NestedHookProvider/NestedObjectWithPostValidationHook.php
new file mode 100644
index 00000000..423d23c6
--- /dev/null
+++ b/tests/Support/Data/NestedHookProvider/NestedObjectWithPostValidationHook.php
@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yiisoft\Validator\Tests\Support\Data\NestedHookProvider;
+
+use Yiisoft\Validator\PostValidationHookInterface;
+use Yiisoft\Validator\Result;
+use Yiisoft\Validator\Rule\Each;
+use Yiisoft\Validator\Rule\Length;
+use Yiisoft\Validator\Rule\Nested;
+use Yiisoft\Validator\Rule\Required;
+use Yiisoft\Validator\Rule\StringValue;
+
+class NestedObjectWithPostValidationHook implements PostValidationHookInterface
+{
+    #[Required]
+    #[StringValue]
+    #[Length(min: 6)]
+    public string $firstString = 'short';
+
+    #[Each(
+        [
+            new StringValue(),
+            new Length(min: 6),
+        ]
+    )]
+    public array $firstArray = [
+        'short',
+        'short',
+        'long string',
+    ];
+
+    #[Nested(SecondNestedObjectWithPostValidationHook::class)]
+    public SecondNestedObjectWithPostValidationHook $secondNested;
+
+    public ?Result $validationResult = null;
+
+    public function __construct()
+    {
+        $this->secondNested = new SecondNestedObjectWithPostValidationHook();
+    }
+
+    public function processValidationResult(Result $result): void
+    {
+        $this->validationResult = $result;
+    }
+}
diff --git a/tests/Support/Data/NestedHookProvider/SecondNestedObjectWithPostValidationHook.php b/tests/Support/Data/NestedHookProvider/SecondNestedObjectWithPostValidationHook.php
new file mode 100644
index 00000000..cad2e9bc
--- /dev/null
+++ b/tests/Support/Data/NestedHookProvider/SecondNestedObjectWithPostValidationHook.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yiisoft\Validator\Tests\Support\Data\NestedHookProvider;
+
+use Yiisoft\Validator\PostValidationHookInterface;
+use Yiisoft\Validator\Result;
+use Yiisoft\Validator\Rule\Integer;
+use Yiisoft\Validator\Rule\Length;
+use Yiisoft\Validator\Rule\Required;
+use Yiisoft\Validator\Rule\StringValue;
+
+class SecondNestedObjectWithPostValidationHook implements PostValidationHookInterface
+{
+    #[Required]
+    #[Integer(min: 5, max: 10)]
+    public int $secondInt = 15;
+    #[StringValue]
+    #[Length(min: 10)]
+    public string $secondString = 'short';
+    public ?Result $validationResult = null;
+
+    public function __construct()
+    {
+    }
+
+    public function processValidationResult(Result $result): void
+    {
+        $this->validationResult = $result;
+    }
+}