diff -r 7d38784092d8 Lib/enum.py
--- a/Lib/enum.py	Wed Sep 11 22:48:52 2013 +0300
+++ b/Lib/enum.py	Thu Sep 12 10:11:53 2013 +0800
@@ -257,6 +257,9 @@
     def __iter__(cls):
         return (cls._member_map_[name] for name in cls._member_names_)
 
+    def __reversed__(cls):
+        return (cls._member_map_[name] for name in reversed(cls._member_names_))
+
     def __len__(cls):
         return len(cls._member_names_)
 
diff -r 7d38784092d8 Lib/test/test_enum.py
--- a/Lib/test/test_enum.py	Wed Sep 11 22:48:52 2013 +0300
+++ b/Lib/test/test_enum.py	Thu Sep 12 10:11:53 2013 +0800
@@ -1019,6 +1019,13 @@
                 blue = 3
                 grene = 2
 
+    def test_reversed(self):
+        self.assertEqual(
+                list(reversed(self.Season)),
+                [self.Season.WINTER, self.Season.AUTUMN, self.Season.SUMMER,
+                 self.Season.SPRING]
+                )
+
     def test_init(self):
         class Planet(Enum):
             MERCURY = (3.303e+23, 2.4397e6)