diff --git a/reference/constraints/Issn.rst b/reference/constraints/Issn.rst
new file mode 100644
index 00000000000..89dcbb6bcb7
--- /dev/null
+++ b/reference/constraints/Issn.rst
@@ -0,0 +1,101 @@
+Issn
+====
+
+.. versionadded:: 2.3
+    The ISSN validation is new in Symfony 2.3.
+
+Validates that a value is a valid `ISSN`_.
+
++----------------+-----------------------------------------------------------------------+
+| Applies to     | :ref:`property or method<validation-property-target>`                 |
++----------------+-----------------------------------------------------------------------+
+| Options        | - `message`_                                                          |
+|                | - `caseSensitive`_                                                    |
+|                | - `requireHyphen`_                                                    |
++----------------+-----------------------------------------------------------------------+
+| Class          | :class:`Symfony\\Component\\Validator\\Constraints\\Issn`             |
++----------------+-----------------------------------------------------------------------+
+| Validator      | :class:`Symfony\\Component\\Validator\\Constraints\\IssnValidator`    |
++----------------+-----------------------------------------------------------------------+
+
+Basic Usage
+-----------
+
+.. configuration-block::
+
+    .. code-block:: yaml
+
+        # src/JournalBundle/Resources/config/validation.yml
+        Acme\JournalBundle\Entity\Journal:
+            properties:
+                issn:
+                    - Issn: ~
+
+    .. code-block:: php-annotations
+
+        // src/Acme/JournalBundle/Entity/Journal.php
+        namespace Acme\JournalBundle\Entity;
+
+        use Symfony\Component\Validator\Constraints as Assert;
+
+        class Journal
+        {
+            /**
+             * @Assert\Issn
+             */
+             protected $issn;
+        }
+
+    .. code-block:: xml
+
+        <!-- src/Acme/JournalBundle/Resources/config/validation.xml -->
+        <class name="Acme\JournalBundle\Entity\Journal">
+            <property name="issn">
+                <constraint name="Issn" />
+            </property>
+        </class>
+
+    .. code-block:: php
+
+        // src/Acme/JournalBundle/Entity/Journal.php
+        namespace Acme\JournalBundle\Entity;
+
+        use Symfony\Component\Validator\Mapping\ClassMetadata;
+        use Symfony\Component\Validator\Constraints as Assert;
+
+        class Journal
+        {
+            public static function loadValidatorMetadata(ClassMetadata $metadata)
+            {
+                $metadata->addPropertyConstraint('issn', new Assert\Issn());
+            }
+        }
+
+Options
+-------
+
+message
+~~~~~~~
+
+**type**: ``String`` default: ``This value is not a valid ISSN.``
+
+The message shown if the given value is not a valid ISSN.
+
+caseSensitive
+~~~~~~~~~~~~~
+
+**type**: ``Boolean`` default: ``false``
+
+The validator will allow ISSN values to end with a lower case 'x' by default.
+When switching this to ``true``, the validator requires an upper case 'X'.
+
+requireHyphen
+~~~~~~~~~~~~~
+
+**type**: ``Boolean`` default: ``false``
+
+The validator will allow non hyphenated ISSN values by default. When switching
+this to ``true``, the validator requires an hyphenathed ISSN value.
+
+.. _`ISSN`: http://en.wikipedia.org/wiki/Issn
+
diff --git a/reference/constraints/map.rst.inc b/reference/constraints/map.rst.inc
index 3d10d637ccf..338ab62dec7 100644
--- a/reference/constraints/map.rst.inc
+++ b/reference/constraints/map.rst.inc
@@ -63,3 +63,4 @@ Other Constraints
 * :doc:`All </reference/constraints/All>`
 * :doc:`UserPassword </reference/constraints/UserPassword>`
 * :doc:`Valid </reference/constraints/Valid>`
+* :doc:`Issn </reference/constraints/Issn>`