diff --git a/openstackclient/tests/unit/volume/v3/test_volume_backup.py b/openstackclient/tests/unit/volume/v3/test_volume_backup.py
index 5be0985a25..86bde785f6 100644
--- a/openstackclient/tests/unit/volume/v3/test_volume_backup.py
+++ b/openstackclient/tests/unit/volume/v3/test_volume_backup.py
@@ -17,6 +17,7 @@ from openstack.block_storage.v3 import backup as _backup
 from openstack.block_storage.v3 import snapshot as _snapshot
 from openstack.block_storage.v3 import volume as _volume
 from openstack import exceptions as sdk_exceptions
+from openstack.identity.v3 import project as _project
 from openstack.test import fakes as sdk_fakes
 from osc_lib import exceptions
 
@@ -381,6 +382,7 @@ class TestBackupList(volume_fakes.TestVolume):
             ("marker", None),
             ("limit", None),
             ('all_projects', False),
+            ("project", None),
         ]
 
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
@@ -395,11 +397,14 @@ class TestBackupList(volume_fakes.TestVolume):
             all_tenants=False,
             marker=None,
             limit=None,
+            project_id=None,
         )
         self.assertEqual(self.columns, columns)
         self.assertCountEqual(self.data, list(data))
 
     def test_backup_list_with_options(self):
+        project = sdk_fakes.generate_fake_resource(_project.Project)
+        self.identity_sdk_client.find_project.return_value = project
         arglist = [
             "--long",
             "--name",
@@ -413,6 +418,8 @@ class TestBackupList(volume_fakes.TestVolume):
             "--all-projects",
             "--limit",
             "3",
+            "--project",
+            project.id,
         ]
         verifylist = [
             ("long", True),
@@ -422,6 +429,7 @@ class TestBackupList(volume_fakes.TestVolume):
             ("marker", self.backups[0].id),
             ('all_projects', True),
             ("limit", 3),
+            ("project", project.id),
         ]
 
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
@@ -440,6 +448,7 @@ class TestBackupList(volume_fakes.TestVolume):
             all_tenants=True,
             marker=self.backups[0].id,
             limit=3,
+            project_id=project.id,
         )
         self.assertEqual(self.columns_long, columns)
         self.assertCountEqual(self.data_long, list(data))
diff --git a/openstackclient/volume/v3/volume_backup.py b/openstackclient/volume/v3/volume_backup.py
index 7df46f8e69..3875f802ac 100644
--- a/openstackclient/volume/v3/volume_backup.py
+++ b/openstackclient/volume/v3/volume_backup.py
@@ -236,6 +236,11 @@ class ListVolumeBackup(command.Lister):
 
     def get_parser(self, prog_name):
         parser = super().get_parser(prog_name)
+        parser.add_argument(
+            '--project',
+            metavar='<project>',
+            help=_('Filter results by project (name or ID) (admin only)'),
+        )
         parser.add_argument(
             "--long",
             action="store_true",
@@ -296,6 +301,7 @@ class ListVolumeBackup(command.Lister):
 
     def take_action(self, parsed_args):
         volume_client = self.app.client_manager.sdk_connection.volume
+        identity_client = self.app.client_manager.sdk_connection.identity
 
         columns: tuple[str, ...] = (
             'id',
@@ -332,6 +338,14 @@ class ListVolumeBackup(command.Lister):
             VolumeIdColumn, volume_cache=volume_cache
         )
 
+        all_tenants = parsed_args.all_projects
+        project_id = None
+        if parsed_args.project:
+            all_tenants = True
+            project_id = identity_client.find_project(
+                parsed_args.project, ignore_missing=False
+            ).id
+
         filter_volume_id = None
         if parsed_args.volume:
             try:
@@ -360,9 +374,10 @@ class ListVolumeBackup(command.Lister):
             name=parsed_args.name,
             status=parsed_args.status,
             volume_id=filter_volume_id,
-            all_tenants=parsed_args.all_projects,
+            all_tenants=all_tenants,
             marker=marker_backup_id,
             limit=parsed_args.limit,
+            project_id=project_id,
         )
 
         return (
diff --git a/releasenotes/notes/add-volume-backup-project-filter-6c09b2c8aba83341.yaml b/releasenotes/notes/add-volume-backup-project-filter-6c09b2c8aba83341.yaml
new file mode 100644
index 0000000000..06bc7a4f02
--- /dev/null
+++ b/releasenotes/notes/add-volume-backup-project-filter-6c09b2c8aba83341.yaml
@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Add ``--project`` option to ``volume backup list`` command,
+    to allow filtering for projects when listing volume backups.