diff --git a/cmscontrib/RemoveTeam.py b/cmscontrib/RemoveTeam.py
new file mode 100644
index 0000000000..a5a8ae3f0f
--- /dev/null
+++ b/cmscontrib/RemoveTeam.py
@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+
+# Contest Management System - http://cms-dev.github.io/
+# Copyright © 2026 Pasit Sangprachathanarak <ouipingpasit@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Utility to remove a team.
+
+"""
+
+import argparse
+import logging
+import sys
+
+from cms import utf8_decoder
+from cms.db import Participation, SessionGen, Team
+
+
+logger = logging.getLogger(__name__)
+
+
+def remove_team(code: str) -> bool:
+    with SessionGen() as session:
+        team = session.query(Team).filter(Team.code == code).first()
+        if team is None:
+            logger.error("Team %s does not exist.", code)
+            return False
+
+        session.query(Participation).filter(Participation.team_id == team.id).update(
+            {Participation.team_id: None}
+        )
+
+        session.delete(team)
+        session.commit()
+
+    return True
+
+
+def main():
+    """Parse arguments and launch process.
+
+    """
+    parser = argparse.ArgumentParser(
+        description="Remove a team from CMS.")
+    parser.add_argument("code", action="store", type=utf8_decoder,
+                        help="the team code")
+    args = parser.parse_args()
+
+    success = remove_team(code=args.code)
+    return 0 if success is True else 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/setup.py b/setup.py
index 76ac8b01d4..6e66ef0e9b 100755
--- a/setup.py
+++ b/setup.py
@@ -144,6 +144,7 @@ class build_with_l10n(build):
             "cmsRemoveParticipation=cmscontrib.RemoveParticipation:main",
             "cmsRemoveSubmissions=cmscontrib.RemoveSubmissions:main",
             "cmsRemoveTask=cmscontrib.RemoveTask:main",
+            "cmsRemoveTeam=cmscontrib.RemoveTeam:main",
             "cmsRemoveUser=cmscontrib.RemoveUser:main",
             "cmsSolutionChecker=cmscontrib.SolutionChecker:main",
             "cmsSpoolExporter=cmscontrib.SpoolExporter:main",