diff --git a/rally/plugins/openstack/context/network/existing_network.py b/rally/plugins/openstack/context/network/existing_network.py
new file mode 100644
index 00000000..f6e59ce4
--- /dev/null
+++ b/rally/plugins/openstack/context/network/existing_network.py
@@ -0,0 +1,53 @@
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+
+from rally.common.i18n import _
+from rally.common import log as logging
+from rally.common import utils
+from rally import consts
+from rally import osclients
+from rally.plugins.openstack.wrappers import network as network_wrapper
+from rally.task import context
+
+
+LOG = logging.getLogger(__name__)
+
+
+@context.configure(name="existing_network", order=349)
+class ExistingNetwork(context.Context):
+    """This context supports using existing networks in Rally.
+
+    This context should be used on a deployment with existing users.
+    """
+
+    CONFIG_SCHEMA = {
+        "type": "object",
+        "$schema": consts.JSON_SCHEMA,
+        "additionalProperties": False
+    }
+
+    @utils.log_task_wrapper(LOG.info, _("Enter context: `existing_network`"))
+    def setup(self):
+        for user, tenant_id in utils.iterate_per_tenants(
+                self.context.get("users", [])):
+            net_wrapper = network_wrapper.wrap(
+                osclients.Clients(user["endpoint"]),
+                self.config)
+            self.context["tenants"][tenant_id]["networks"] = (
+                net_wrapper.list_networks())
+
+    @utils.log_task_wrapper(LOG.info, _("Exit context: `existing_network`"))
+    def cleanup(self):
+        """Networks were not created by Rally, so nothing to do."""
diff --git a/tests/unit/plugins/openstack/context/neutron/test_existing_network.py b/tests/unit/plugins/openstack/context/neutron/test_existing_network.py
new file mode 100644
index 00000000..51ea28fc
--- /dev/null
+++ b/tests/unit/plugins/openstack/context/neutron/test_existing_network.py
@@ -0,0 +1,81 @@
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import mock
+
+from rally.plugins.openstack.context.network import existing_network
+from tests.unit import test
+
+CTX = "rally.plugins.openstack.context.network"
+
+
+class ExistingNetworkTestCase(test.TestCase):
+
+    def setUp(self):
+        super(ExistingNetworkTestCase, self).setUp()
+
+        self.config = mock.MagicMock()
+        self.context = {
+            "task": mock.MagicMock(),
+            "users": [
+                {"id": 1,
+                 "tenant_id": "tenant1",
+                 "endpoint": mock.Mock()},
+                {"id": 2,
+                 "tenant_id": "tenant2",
+                 "endpoint": mock.Mock()},
+            ],
+            "tenants": {
+                "tenant1": {},
+                "tenant2": {},
+            },
+            "config": {
+                "existing_network": self.config
+            },
+        }
+
+    @mock.patch("rally.osclients.Clients")
+    @mock.patch("rally.plugins.openstack.wrappers.network.wrap")
+    def test_setup(self, mock_network_wrap, mock_clients):
+        networks = [mock.Mock(), mock.Mock(), mock.Mock()]
+        net_wrappers = {
+            "tenant1": mock.Mock(
+                **{"list_networks.return_value": networks[0:2]}),
+            "tenant2": mock.Mock(
+                **{"list_networks.return_value": networks[2:]})
+        }
+        mock_network_wrap.side_effect = [net_wrappers["tenant1"],
+                                         net_wrappers["tenant2"]]
+
+        existing_network.ExistingNetwork(self.context).setup()
+
+        mock_clients.assert_has_calls([
+            mock.call(u["endpoint"]) for u in self.context["users"]])
+        mock_network_wrap.assert_has_calls([
+            mock.call(mock_clients.return_value, self.config),
+            mock.call(mock_clients.return_value, self.config)])
+        for net_wrapper in net_wrappers.values():
+            net_wrapper.list_networks.assert_called_once_with()
+
+        self.assertDictEqual(
+            self.context["tenants"],
+            {
+                "tenant1": {"networks": networks[0:2]},
+                "tenant2": {"networks": networks[2:]},
+            }
+        )
+
+    def test_cleanup(self):
+        # NOTE(stpierre): Test that cleanup is not abstract
+        existing_network.ExistingNetwork({"task": mock.MagicMock()}).cleanup()