diff --git a/lib/Doctrine/ORM/Event/OnClearEventArgs.php b/lib/Doctrine/ORM/Event/OnClearEventArgs.php
new file mode 100644
index 000000000..ad89fbc90
--- /dev/null
+++ b/lib/Doctrine/ORM/Event/OnClearEventArgs.php
@@ -0,0 +1,54 @@
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+*/
+
+namespace Doctrine\ORM\Event;
+
+/**
+ * Provides event arguments for the onClear event.
+ *
+ * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link        www.doctrine-project.com
+ * @since       2.0
+ * @version     $Revision$
+ * @author      Roman Borschel <roman@code-factory.de>
+ * @author      Benjamin Eberlei <kontakt@beberlei.de>
+ */
+class OnClearEventArgs extends \Doctrine\Common\EventArgs
+{
+    /**
+     * @var \Doctrine\ORM\EntityManager
+     */
+    private $em;
+
+    /**
+     * @param \Doctrine\ORM\EntityManager $em
+     */
+    public function __construct($em)
+    {
+        $this->em = $em;
+    }
+
+    /**
+     * @return \Doctrine\ORM\EntityManager
+     */
+    public function getEntityManager()
+    {
+        return $this->em;
+    }
+}
\ No newline at end of file
diff --git a/lib/Doctrine/ORM/Events.php b/lib/Doctrine/ORM/Events.php
index e25de658a..8344b07c1 100644
--- a/lib/Doctrine/ORM/Events.php
+++ b/lib/Doctrine/ORM/Events.php
@@ -119,4 +119,12 @@ final class Events
      * @var string
      */
     const onFlush = 'onFlush';
+
+    /**
+     * The onClear event occurs when the EntityManager#clear() operation is invoked,
+     * after all references to entities have been removed from the unit of work.
+     *
+     * @var string
+     */
+    const onClear = 'onClear';
 }
\ No newline at end of file
diff --git a/lib/Doctrine/ORM/UnitOfWork.php b/lib/Doctrine/ORM/UnitOfWork.php
index db29d9c64..79c946f87 100644
--- a/lib/Doctrine/ORM/UnitOfWork.php
+++ b/lib/Doctrine/ORM/UnitOfWork.php
@@ -1790,6 +1790,10 @@ class UnitOfWork implements PropertyChangedListener
         if ($this->commitOrderCalculator !== null) {
             $this->commitOrderCalculator->clear();
         }
+
+        if ($this->evm->hasListeners(Events::onClear)) {
+            $this->evm->dispatchEvent(Events::onClear, new Event\OnClearEventArgs($this->em));
+        }
     }
     
     /**
diff --git a/tests/Doctrine/Tests/ORM/Functional/AllTests.php b/tests/Doctrine/Tests/ORM/Functional/AllTests.php
index 077ee4a7c..cac410281 100644
--- a/tests/Doctrine/Tests/ORM/Functional/AllTests.php
+++ b/tests/Doctrine/Tests/ORM/Functional/AllTests.php
@@ -58,6 +58,7 @@ class AllTests
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\DatabaseDriverTest');
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\PostgreSQLIdentityStrategyTest');
         $suite->addTestSuite('Doctrine\Tests\ORM\Functional\ExtraLazyCollectionTest');
+        $suite->addTestSuite('Doctrine\Tests\ORM\Functional\ClearEventTest');
         
         $suite->addTest(Locking\AllTests::suite());
         $suite->addTest(Ticket\AllTests::suite());
diff --git a/tests/Doctrine/Tests/ORM/Functional/ClearEventTest.php b/tests/Doctrine/Tests/ORM/Functional/ClearEventTest.php
new file mode 100644
index 000000000..e86edb5b7
--- /dev/null
+++ b/tests/Doctrine/Tests/ORM/Functional/ClearEventTest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Doctrine\Tests\ORM\Functional;
+
+use Doctrine\ORM\Event\OnClearEventArgs;
+use Doctrine\ORM\Events;
+
+require_once __DIR__ . '/../../TestInit.php';
+
+/**
+ * ClearEventTest
+ *
+ * @author Michael Ridgway <mcridgway@gmail.com>
+ */
+class ClearEventTest extends \Doctrine\Tests\OrmFunctionalTestCase
+{
+    protected function setUp() {
+        parent::setUp();
+    }
+
+    public function testEventIsCalledOnClear()
+    {
+        $listener = new OnClearListener;
+        $this->_em->getEventManager()->addEventListener(Events::onClear, $listener);
+
+        $this->_em->clear();
+
+        $this->assertTrue($listener->called);
+    }
+}
+
+class OnClearListener
+{
+    public $called = false;
+
+    public function onClear(OnClearEventArgs $args)
+    {
+        $this->called = true;
+    }
+}
\ No newline at end of file