diff --git a/openstack/image/v2/_proxy.py b/openstack/image/v2/_proxy.py
index 94d99dc28..39e940f6a 100644
--- a/openstack/image/v2/_proxy.py
+++ b/openstack/image/v2/_proxy.py
@@ -1313,6 +1313,22 @@ class Proxy(proxy.Proxy):
             **attrs,
         )
 
+    def delete_all_metadef_objects(self, namespace):
+        """Delete all objects
+
+        :param namespace: The value can be either the name of a metadef
+            namespace or a
+            :class:`~openstack.image.v2.metadef_namespace.MetadefNamespace`
+            instance.
+        :returns: ``None``
+        :raises: :class:`~openstack.exceptions.ResourceNotFound` when no
+            resource can be found.
+        """
+        namespace = self._get_resource(
+            _metadef_namespace.MetadefNamespace, namespace
+        )
+        return namespace.delete_all_objects(self)
+
     # ====== METADEF RESOURCE TYPES ======
     def metadef_resource_types(self, **query):
         """Return a generator of metadef resource types
diff --git a/openstack/image/v2/metadef_namespace.py b/openstack/image/v2/metadef_namespace.py
index 133a929b1..88e028f8e 100644
--- a/openstack/image/v2/metadef_namespace.py
+++ b/openstack/image/v2/metadef_namespace.py
@@ -86,5 +86,15 @@ class MetadefNamespace(resource.Resource):
         :param session: The session to use for making this request
         :returns: The server response
         """
+
         url = utils.urljoin(self.base_path, self.id, 'properties')
         return self._delete_all(session, url)
+
+    def delete_all_objects(self, session):
+        """Delete all objects in a namespace.
+
+        :param session: The session to use for making this request
+        :returns: The server response
+        """
+        url = utils.urljoin(self.base_path, self.id, 'objects')
+        return self._delete_all(session, url)
diff --git a/openstack/tests/unit/image/v2/test_metadef_namespace.py b/openstack/tests/unit/image/v2/test_metadef_namespace.py
index f22a1e6ce..cf614f2a8 100644
--- a/openstack/tests/unit/image/v2/test_metadef_namespace.py
+++ b/openstack/tests/unit/image/v2/test_metadef_namespace.py
@@ -87,3 +87,13 @@ class TestMetadefNamespace(base.TestCase):
         session.delete.assert_called_with(
             'metadefs/namespaces/OS::Cinder::Volumetype/properties'
         )
+
+    @mock.patch.object(exceptions, 'raise_from_response', mock.Mock())
+    def test_delete_all_objects(self):
+        sot = metadef_namespace.MetadefNamespace(**EXAMPLE)
+        session = mock.Mock(spec=adapter.Adapter)
+        sot._translate_response = mock.Mock()
+        sot.delete_all_objects(session)
+        session.delete.assert_called_with(
+            'metadefs/namespaces/OS::Cinder::Volumetype/objects'
+        )
diff --git a/openstack/tests/unit/image/v2/test_proxy.py b/openstack/tests/unit/image/v2/test_proxy.py
index d74777cc9..bc5fd234d 100644
--- a/openstack/tests/unit/image/v2/test_proxy.py
+++ b/openstack/tests/unit/image/v2/test_proxy.py
@@ -616,6 +616,20 @@ class TestMetadefObject(TestImageProxy):
             expected_kwargs={"namespace_name": "test_namespace_name"},
         )
 
+    @mock.patch.object(proxy_base.Proxy, '_get_resource')
+    def test_delete_all_metadef_objects(self, mock_get_resource):
+        fake_object = _metadef_namespace.MetadefNamespace()
+        mock_get_resource.return_value = fake_object
+        self._verify(
+            "openstack.image.v2.metadef_namespace.MetadefNamespace.delete_all_objects",
+            self.proxy.delete_all_metadef_objects,
+            method_args=['test_namespace'],
+            expected_args=[self.proxy],
+        )
+        mock_get_resource.assert_called_once_with(
+            _metadef_namespace.MetadefNamespace, 'test_namespace'
+        )
+
 
 class TestMetadefResourceType(TestImageProxy):
     def test_metadef_resource_types(self):
diff --git a/releasenotes/notes/add-namespace-object-delete-all-6cea62cb038012df.yaml b/releasenotes/notes/add-namespace-object-delete-all-6cea62cb038012df.yaml
new file mode 100644
index 000000000..b8863d816
--- /dev/null
+++ b/releasenotes/notes/add-namespace-object-delete-all-6cea62cb038012df.yaml
@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Add support for deleting all objects inside
+    a namespace.