diff --git a/releasenotes/notes/add-alt-project-dynamic-creds-1a3bc543e65d9433.yaml b/releasenotes/notes/add-alt-project-dynamic-creds-1a3bc543e65d9433.yaml
new file mode 100644
index 0000000..de81b2b
--- /dev/null
+++ b/releasenotes/notes/add-alt-project-dynamic-creds-1a3bc543e65d9433.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Add project alternate admin, member and reader role for dynamic credentials.
diff --git a/tempest/lib/common/cred_provider.py b/tempest/lib/common/cred_provider.py
index 35bca1d..5af5a5e 100644
--- a/tempest/lib/common/cred_provider.py
+++ b/tempest/lib/common/cred_provider.py
@@ -86,14 +86,26 @@
         return
 
     @abc.abstractmethod
+    def get_project_alt_admin_creds(self):
+        return
+
+    @abc.abstractmethod
     def get_project_member_creds(self):
         return
 
     @abc.abstractmethod
+    def get_project_alt_member_creds(self):
+        return
+
+    @abc.abstractmethod
     def get_project_reader_creds(self):
         return
 
     @abc.abstractmethod
+    def get_project_alt_reader_creds(self):
+        return
+
+    @abc.abstractmethod
     def clear_creds(self):
         return
 
diff --git a/tempest/lib/common/dynamic_creds.py b/tempest/lib/common/dynamic_creds.py
index 95f7e0b..5e2308e 100644
--- a/tempest/lib/common/dynamic_creds.py
+++ b/tempest/lib/common/dynamic_creds.py
@@ -379,12 +379,15 @@
             credentials = self._creds["%s_%s" % (scope, credential_type[0])]
         else:
             if scope:
-                if credential_type == 'admin':
+                if credential_type in [['admin'], ['alt_admin']]:
                     credentials = self._create_creds(
                         admin=True, scope=scope)
                 else:
+                    cred_type = credential_type
+                    if credential_type in [['alt_member'], ['alt_reader']]:
+                        cred_type = credential_type[0][4:]
                     credentials = self._create_creds(
-                        roles=credential_type, scope=scope)
+                        roles=[cred_type], scope=scope)
             elif credential_type in ['primary', 'alt', 'admin']:
                 is_admin = (credential_type == 'admin')
                 credentials = self._create_creds(admin=is_admin)
@@ -443,12 +446,21 @@
     def get_project_admin_creds(self):
         return self.get_credentials(['admin'], scope='project')
 
+    def get_project_alt_admin_creds(self):
+        return self.get_credentials(['alt_admin'], scope='project')
+
     def get_project_member_creds(self):
         return self.get_credentials(['member'], scope='project')
 
+    def get_project_alt_member_creds(self):
+        return self.get_credentials(['alt_member'], scope='project')
+
     def get_project_reader_creds(self):
         return self.get_credentials(['reader'], scope='project')
 
+    def get_project_alt_reader_creds(self):
+        return self.get_credentials(['alt_reader'], scope='project')
+
     def get_creds_by_roles(self, roles, force_new=False):
         roles = list(set(roles))
         # The roles list as a str will become the index as the dict key for
diff --git a/tempest/lib/common/preprov_creds.py b/tempest/lib/common/preprov_creds.py
index 313d3eb..a41f0bb 100644
--- a/tempest/lib/common/preprov_creds.py
+++ b/tempest/lib/common/preprov_creds.py
@@ -374,6 +374,10 @@
         self._creds['project_admin'] = project_admin
         return project_admin
 
+    def get_project_alt_admin_creds(self):
+        # TODO(gmann): Implement alt admin hash.
+        return
+
     def get_project_member_creds(self):
         if self._creds.get('project_member'):
             return self._creds.get('project_member')
@@ -381,6 +385,10 @@
         self._creds['project_member'] = project_member
         return project_member
 
+    def get_project_alt_member_creds(self):
+        # TODO(gmann): Implement alt member hash.
+        return
+
     def get_project_reader_creds(self):
         if self._creds.get('project_reader'):
             return self._creds.get('project_reader')
@@ -388,6 +396,10 @@
         self._creds['project_reader'] = project_reader
         return project_reader
 
+    def get_project_alt_reader_creds(self):
+        # TODO(gmann): Implement alt reader hash.
+        return
+
     def get_creds_by_roles(self, roles, force_new=False):
         roles = list(set(roles))
         exist_creds = self._creds.get(str(roles).encode(
diff --git a/tempest/test.py b/tempest/test.py
index 68602d6..2dfedeb 100644
--- a/tempest/test.py
+++ b/tempest/test.py
@@ -296,6 +296,7 @@
         identity_version = cls.get_identity_version()
         # setting force_tenant_isolation to True also needs admin credentials.
         if ('admin' in cls.credentials or
+                'alt_admin' in cls.credentials or
                 getattr(cls, 'force_tenant_isolation', False)):
             if not credentials.is_admin_available(
                     identity_version=identity_version):
diff --git a/tempest/tests/lib/common/test_dynamic_creds.py b/tempest/tests/lib/common/test_dynamic_creds.py
index e9073cc..4bb6440 100644
--- a/tempest/tests/lib/common/test_dynamic_creds.py
+++ b/tempest/tests/lib/common/test_dynamic_creds.py
@@ -214,6 +214,56 @@
         self.assertEqual(admin_creds.user_id, '1234')
 
     @mock.patch('tempest.lib.common.rest_client.RestClient')
+    def test_project_alt_admin_creds(self, MockRestClient):
+        creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
+        self._mock_list_roles('1234', 'admin')
+        self._mock_user_create('1234', 'fake_alt_admin_user')
+        self._mock_tenant_create('1234', 'fake_alt_admin')
+
+        user_mock = mock.patch.object(self.roles_client.RolesClient,
+                                      'create_user_role_on_project')
+        user_mock.start()
+        self.addCleanup(user_mock.stop)
+        with mock.patch.object(self.roles_client.RolesClient,
+                               'create_user_role_on_project') as user_mock:
+            alt_admin_creds = creds.get_project_alt_admin_creds()
+        user_mock.assert_has_calls([
+            mock.call('1234', '1234', '1234')])
+        self.assertEqual(alt_admin_creds.username, 'fake_alt_admin_user')
+        self.assertEqual(alt_admin_creds.project_name, 'fake_alt_admin')
+        # Verify IDs
+        self.assertEqual(alt_admin_creds.project_id, '1234')
+        self.assertEqual(alt_admin_creds.user_id, '1234')
+
+    @mock.patch('tempest.lib.common.rest_client.RestClient')
+    def test_project_alt_member_creds(self, MockRestClient):
+        creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
+        self._mock_assign_user_role()
+        self._mock_list_role()
+        self._mock_tenant_create('1234', 'fake_alt_member')
+        self._mock_user_create('1234', 'fake_alt_user')
+        alt_member_creds = creds.get_project_alt_member_creds()
+        self.assertEqual(alt_member_creds.username, 'fake_alt_user')
+        self.assertEqual(alt_member_creds.project_name, 'fake_alt_member')
+        # Verify IDs
+        self.assertEqual(alt_member_creds.project_id, '1234')
+        self.assertEqual(alt_member_creds.user_id, '1234')
+
+    @mock.patch('tempest.lib.common.rest_client.RestClient')
+    def test_project_alt_reader_creds(self, MockRestClient):
+        creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
+        self._mock_assign_user_role()
+        self._mock_list_roles('1234', 'reader')
+        self._mock_tenant_create('1234', 'fake_alt_reader')
+        self._mock_user_create('1234', 'fake_alt_user')
+        alt_reader_creds = creds.get_project_alt_reader_creds()
+        self.assertEqual(alt_reader_creds.username, 'fake_alt_user')
+        self.assertEqual(alt_reader_creds.project_name, 'fake_alt_reader')
+        # Verify IDs
+        self.assertEqual(alt_reader_creds.project_id, '1234')
+        self.assertEqual(alt_reader_creds.user_id, '1234')
+
+    @mock.patch('tempest.lib.common.rest_client.RestClient')
     def test_role_creds(self, MockRestClient):
         creds = dynamic_creds.DynamicCredentialProvider(**self.fixed_params)
         self._mock_list_2_roles()