diff --git a/docs/gl_objects/groups.rst b/docs/gl_objects/groups.rst
index c100f87cb..7fcf980b6 100644
--- a/docs/gl_objects/groups.rst
+++ b/docs/gl_objects/groups.rst
@@ -164,6 +164,11 @@ List group members::
 
     members = group.members.list()
 
+List the group members recursively (including inherited members through
+ancestor groups)::
+
+    members = group.members.all(all=True)
+
 Get a group member::
 
     members = group.members.get(member_id)
diff --git a/docs/gl_objects/projects.rst b/docs/gl_objects/projects.rst
index 5cc223ff5..dd43294d9 100644
--- a/docs/gl_objects/projects.rst
+++ b/docs/gl_objects/projects.rst
@@ -478,6 +478,11 @@ List the project members::
 
     members = project.members.list()
 
+List the project members recursively (including inherited members through
+ancestor groups)::
+
+    members = project.members.all(all=True)
+
 Search project members matching a query string::
 
     members = project.members.list(query='bar')
diff --git a/gitlab/v4/objects.py b/gitlab/v4/objects.py
index 281301e0c..3f019559f 100644
--- a/gitlab/v4/objects.py
+++ b/gitlab/v4/objects.py
@@ -705,6 +705,30 @@ class GroupMemberManager(CRUDMixin, RESTManager):
     _create_attrs = (('access_level', 'user_id'), ('expires_at', ))
     _update_attrs = (('access_level', ), ('expires_at', ))
 
+    @cli.register_custom_action('GroupMemberManager')
+    @exc.on_http_error(exc.GitlabListError)
+    def all(self, **kwargs):
+        """List all the members, included inherited ones.
+
+        Args:
+            all (bool): If True, return all the items, without pagination
+            per_page (int): Number of items to retrieve per request
+            page (int): ID of the page to return (starts with page 1)
+            as_list (bool): If set to False and no pagination option is
+                defined, return a generator instead of a list
+            **kwargs: Extra options to send to the server (e.g. sudo)
+
+        Raises:
+            GitlabAuthenticationError: If authentication is not correct
+            GitlabListError: If the list could not be retrieved
+
+        Returns:
+            RESTObjectList: The list of members
+        """
+
+        path = '%s/all' % self.path
+        return self.gitlab.http_list(path, **kwargs)
+
 
 class GroupMergeRequest(RESTObject):
     pass
@@ -1884,6 +1908,30 @@ class ProjectMemberManager(CRUDMixin, RESTManager):
     _create_attrs = (('access_level', 'user_id'), ('expires_at', ))
     _update_attrs = (('access_level', ), ('expires_at', ))
 
+    @cli.register_custom_action('ProjectMemberManager')
+    @exc.on_http_error(exc.GitlabListError)
+    def all(self, **kwargs):
+        """List all the members, included inherited ones.
+
+        Args:
+            all (bool): If True, return all the items, without pagination
+            per_page (int): Number of items to retrieve per request
+            page (int): ID of the page to return (starts with page 1)
+            as_list (bool): If set to False and no pagination option is
+                defined, return a generator instead of a list
+            **kwargs: Extra options to send to the server (e.g. sudo)
+
+        Raises:
+            GitlabAuthenticationError: If authentication is not correct
+            GitlabListError: If the list could not be retrieved
+
+        Returns:
+            RESTObjectList: The list of members
+        """
+
+        path = '%s/all' % self.path
+        return self.gitlab.http_list(path, **kwargs)
+
 
 class ProjectNote(RESTObject):
     pass
diff --git a/tools/python_test_v4.py b/tools/python_test_v4.py
index 133aeb3be..8ff099b6e 100644
--- a/tools/python_test_v4.py
+++ b/tools/python_test_v4.py
@@ -244,6 +244,7 @@
 
 group1.members.delete(user1.id)
 assert(len(group1.members.list()) == 2)
+assert(len(group1.members.all()))
 member = group1.members.get(user2.id)
 member.access_level = gitlab.const.OWNER_ACCESS
 member.save()