diff --git a/src/Symfony/Component/Validator/CHANGELOG.md b/src/Symfony/Component/Validator/CHANGELOG.md
index fc974c5a185a9..e953159c10137 100644
--- a/src/Symfony/Component/Validator/CHANGELOG.md
+++ b/src/Symfony/Component/Validator/CHANGELOG.md
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+6.4
+---
+
+ * Add the special group name `*` which can be passed to `ValidatorInterface::validate()` to validate all constraints, regardless of their group.
+
 6.3
 ---
 
diff --git a/src/Symfony/Component/Validator/Mapping/GenericMetadata.php b/src/Symfony/Component/Validator/Mapping/GenericMetadata.php
index f05e402609d5d..c59aad824d042 100644
--- a/src/Symfony/Component/Validator/Mapping/GenericMetadata.php
+++ b/src/Symfony/Component/Validator/Mapping/GenericMetadata.php
@@ -204,6 +204,15 @@ public function hasConstraints(): bool
      */
     public function findConstraints(string $group): array
     {
+        if ('*' === $group) {
+            $constraints = [];
+            foreach ($this->constraintsByGroup as $groupConstraints) {
+                $constraints = array_merge($constraints, $groupConstraints);
+            }
+
+            return $constraints;
+        }
+
         return $this->constraintsByGroup[$group] ?? [];
     }
 
diff --git a/src/Symfony/Component/Validator/Tests/Validator/RecursiveValidatorTest.php b/src/Symfony/Component/Validator/Tests/Validator/RecursiveValidatorTest.php
index 010536e661f19..a1d3efe77ad85 100644
--- a/src/Symfony/Component/Validator/Tests/Validator/RecursiveValidatorTest.php
+++ b/src/Symfony/Component/Validator/Tests/Validator/RecursiveValidatorTest.php
@@ -1114,6 +1114,32 @@ public function testValidateMultipleGroups()
         $this->assertCount(2, $violations);
     }
 
+    public function testValidateAllGroups()
+    {
+        $entity = new Entity();
+
+        $callback = function ($value, ExecutionContextInterface $context) {
+            $context->addViolation('Message');
+        };
+
+        $this->metadata->addConstraint(new Callback([
+            'callback' => $callback,
+            'groups' => 'Group 1',
+        ]));
+        $this->metadata->addConstraint(new Callback([
+            'callback' => $callback,
+            'groups' => 'Group 2',
+        ]));
+        $this->metadata->addConstraint(new Callback([
+            'callback' => $callback,
+        ]));
+
+        $violations = $this->validate($entity, null, '*');
+
+        /* @var ConstraintViolationInterface[] $violations */
+        $this->assertCount(3, $violations);
+    }
+
     public function testReplaceDefaultGroupByGroupSequenceObject()
     {
         $entity = new Entity();