diff --git a/openstackclient/common/quota.py b/openstackclient/common/quota.py
index efe1ce2036..6d0025a754 100644
--- a/openstackclient/common/quota.py
+++ b/openstackclient/common/quota.py
@@ -797,20 +797,25 @@ and ``server-group-members`` output for a given quota class."""
         info.update(volume_quota_info)
         info.update(network_quota_info)
 
-        # Map the internal quota names to the external ones
-        # COMPUTE_QUOTAS and NETWORK_QUOTAS share floating-ips,
-        # secgroup-rules and secgroups as dict value, so when
-        # neutron is enabled, quotas of these three resources
-        # in nova will be replaced by neutron's.
-        for k, v in itertools.chain(
-            COMPUTE_QUOTAS.items(),
-            NOVA_NETWORK_QUOTAS.items(),
-            VOLUME_QUOTAS.items(),
-            NETWORK_QUOTAS.items(),
-        ):
-            if not k == v and info.get(k) is not None:
-                info[v] = info[k]
-                info.pop(k)
+        def _normalize_names(section: dict) -> None:
+            # Map the internal quota names to the external ones
+            # COMPUTE_QUOTAS and NETWORK_QUOTAS share floating-ips,
+            # secgroup-rules and secgroups as dict value, so when
+            # neutron is enabled, quotas of these three resources
+            # in nova will be replaced by neutron's.
+            for k, v in itertools.chain(
+                COMPUTE_QUOTAS.items(),
+                NOVA_NETWORK_QUOTAS.items(),
+                VOLUME_QUOTAS.items(),
+                NETWORK_QUOTAS.items(),
+            ):
+                if not k == v and section.get(k) is not None:
+                    section[v] = section.pop(k)
+
+        _normalize_names(info)
+        if parsed_args.usage:
+            _normalize_names(info["reservation"])
+            _normalize_names(info["usage"])
 
         # Remove the 'id' field since it's not very useful
         if 'id' in info:
diff --git a/openstackclient/tests/unit/common/test_quota.py b/openstackclient/tests/unit/common/test_quota.py
index a2418d01bb..7bfb2e7f2f 100644
--- a/openstackclient/tests/unit/common/test_quota.py
+++ b/openstackclient/tests/unit/common/test_quota.py
@@ -10,6 +10,7 @@
 #   License for the specific language governing permissions and limitations
 #   under the License.
 
+import copy
 from unittest import mock
 
 from openstack.block_storage.v3 import quota_set as _volume_quota_set
@@ -1122,6 +1123,64 @@ class TestQuotaShow(TestQuota):
         )
         self.assertNotCalled(self.network_client.get_quota_default)
 
+    def test_quota_show__with_network_and_usage(self):
+        # ensure we do not interfere with other tests
+        self._network_quota_details = copy.deepcopy(
+            self._network_quota_details
+        )
+        # set a couple of resources
+        self._network_quota_details["floating_ips"].update(
+            limit=30, reserved=20, used=7
+        )
+        self._network_quota_details["security_group_rules"].update(
+            limit=9, reserved=7, used=5
+        )
+
+        arglist = [
+            '--network',
+            '--usage',
+            self.projects[0].name,
+        ]
+        verifylist = [
+            ('service', 'network'),
+            ('project', self.projects[0].name),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        headers, result_gen = self.cmd.take_action(parsed_args)
+
+        self.assertEqual(('Resource', 'Limit', 'In Use', 'Reserved'), headers)
+
+        result = sorted(result_gen)
+
+        self.assertEqual(
+            [
+                ('floating-ips', 30, 7, 20),
+                ('health_monitors', 0, 0, 0),
+                ('l7_policies', 0, 0, 0),
+                ('listeners', 0, 0, 0),
+                ('load_balancers', 0, 0, 0),
+                ('networks', 0, 0, 0),
+                ('pools', 0, 0, 0),
+                ('ports', 0, 0, 0),
+                ('rbac_policies', 0, 0, 0),
+                ('routers', 0, 0, 0),
+                ('secgroup-rules', 9, 5, 7),
+                ('secgroups', 0, 0, 0),
+                ('subnet_pools', 0, 0, 0),
+                ('subnets', 0, 0, 0),
+            ],
+            result,
+        )
+
+        self.compute_client.get_quota_set.assert_not_called()
+        self.volume_sdk_client.get_quota_set.assert_not_called()
+        self.network_client.get_quota.assert_called_once_with(
+            self.projects[0].id,
+            details=True,
+        )
+        self.assertNotCalled(self.network_client.get_quota_default)
+
     def test_quota_show__with_default(self):
         arglist = [
             '--default',
diff --git a/releasenotes/notes/bug-2137636-fix-quota-usage-display-2d8f07dccc21f79c.yaml b/releasenotes/notes/bug-2137636-fix-quota-usage-display-2d8f07dccc21f79c.yaml
new file mode 100644
index 0000000000..818e29ae82
--- /dev/null
+++ b/releasenotes/notes/bug-2137636-fix-quota-usage-display-2d8f07dccc21f79c.yaml
@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fix ``openstack quota show --usage`` to correctly display resource usage
+    and reservation.