diff -r d958c74ddb0c -r b48113329f02 Lib/argparse.py
--- a/Lib/argparse.py	Mon Apr 13 16:44:05 2015 -0500
+++ b/Lib/argparse.py	Wed Apr 15 12:08:38 2015 -0400
@@ -483,6 +483,9 @@
         return self._fill_text(text, text_width, indent) + '\n\n'
 
     def _format_action(self, action):
+        if action.help is SUPPRESS:
+            return ''
+
         # determine the required width and the entry label
         help_position = min(self._action_max_length + 2,
                             self._max_help_position)
@@ -557,7 +560,14 @@
         if action.metavar is not None:
             result = action.metavar
         elif action.choices is not None:
-            choice_strs = [str(choice) for choice in action.choices]
+            if isinstance(action.choices, _collections.Mapping):
+                choice_strs = []
+                for choice, subaction in action.choices.items():
+                    if not getattr(subaction, '_is_help_suppressed', False):
+                        choice_strs.append(str(choice))
+            else:
+                choice_strs = [str(choice) for choice in action.choices]
+
             result = '{%s}' % ','.join(choice_strs)
         else:
             result = default_metavar
@@ -1084,6 +1094,7 @@
         aliases = kwargs.pop('aliases', ())
 
         # create a pseudo-action to hold the choice help
+        help = None
         if 'help' in kwargs:
             help = kwargs.pop('help')
             choice_action = self._ChoicesPseudoAction(name, aliases, help)
@@ -1091,6 +1102,8 @@
 
         # create the parser and add it to the map
         parser = self._parser_class(**kwargs)
+        if help is SUPPRESS:
+            parser._is_help_suppressed = True
         self._name_parser_map[name] = parser
 
         # make parser available under aliases also
@@ -1629,6 +1642,7 @@
         self._positionals = add_group(_('positional arguments'))
         self._optionals = add_group(_('optional arguments'))
         self._subparsers = None
+        self._is_help_suppressed = False
 
         # register types
         def identity(string):
diff -r d958c74ddb0c -r b48113329f02 Lib/test/test_argparse.py
--- a/Lib/test/test_argparse.py	Mon Apr 13 16:44:05 2015 -0500
+++ b/Lib/test/test_argparse.py	Wed Apr 15 12:08:38 2015 -0400
@@ -2013,6 +2013,58 @@
               {1,2}       additional text
             '''))
 
+    def test_subparser_help_suppressed(self):
+        parser = argparse.ArgumentParser(prog='PROG',
+                                            description='main description')
+        subparsers = parser.add_subparsers(title='subcommands',
+                                           description='subcommands description',
+                                           help='subcommands help')
+        parser1 = subparsers.add_parser('1', help='help for command 1')
+        parser2 = subparsers.add_parser('2', help='help for command 2')
+        parser3 = subparsers.add_parser('3', aliases=('3alias',), help=argparse.SUPPRESS)
+        parser4 = subparsers.add_parser('4', help=argparse.SUPPRESS)
+
+        expected_usage = 'usage: PROG [-h] {1,2} ...\n'
+        self.assertEqual(parser.format_usage(), expected_usage)
+        self.assertEqual(parser.format_help(), expected_usage + textwrap.dedent('''\
+
+            main description
+
+            optional arguments:
+              -h, --help  show this help message and exit
+
+            subcommands:
+              subcommands description
+
+              {1,2}       subcommands help
+                1         help for command 1
+                2         help for command 2
+            '''))
+
+    def test_all_subparsers_help_suppressed(self):
+        parser = argparse.ArgumentParser(prog='PROG',
+                                            description='main description')
+        subparsers = parser.add_subparsers(title='subcommands',
+                                           description='subcommands description',
+                                           help='subcommands help')
+        parser1 = subparsers.add_parser('1', help=argparse.SUPPRESS)
+        parser2 = subparsers.add_parser('2', aliases=('2alias',), help=argparse.SUPPRESS)
+
+        expected_usage = 'usage: PROG [-h] {} ...\n'
+        self.assertEqual(parser.format_usage(), expected_usage)
+        self.assertEqual(parser.format_help(), expected_usage + textwrap.dedent('''\
+
+            main description
+
+            optional arguments:
+              -h, --help  show this help message and exit
+
+            subcommands:
+              subcommands description
+
+              {}          subcommands help
+            '''))
+
     def _test_subparser_help(self, args_str, expected_help):
         with self.assertRaises(ArgumentParserError) as cm:
             self.parser.parse_args(args_str.split())