diff --git a/backend/cliapp/cliapp/cli.py b/backend/cliapp/cliapp/cli.py
index 542c859321f8cc4d53b0fd500cb717a5e49f92a4..4c41ab53aecea3e893f8646f4344f616ab967660 100644
--- a/backend/cliapp/cliapp/cli.py
+++ b/backend/cliapp/cliapp/cli.py
@@ -7,6 +7,7 @@ the user entries in the database(s)"""
 import sys
 
 import click
+import datetime
 import ory_hydra_client
 import ory_kratos_client
 from flask import current_app
@@ -82,6 +83,42 @@ def list_app():
         print(f"App name: {obj.name}\tSlug: {obj.slug},\tURL: {obj.get_url()}\tStatus: {obj.get_status()}")
 
 
+@user_cli.command("cleanup")
+@click.option("--dry-run", is_flag=True, default=False)
+def cleanup_users(dry_run):
+    """
+    Remove users that have never been active and are at least six weeks old.
+    """
+    current_app.logger.info("Listing inactive users")
+    if dry_run:
+        print("Dry run, so not deleting anything.")
+    users = KratosUser.find_all(kratos_identity_api)
+    number_users = 0
+    number_inactive_users = 0
+    for user in users:
+        number_users = number_users + 1
+        try:
+            last_recovery = user.metadata_admin.get('last_recovery')
+        except (KeyError, AttributeError):
+            last_recovery = None
+        if last_recovery is not None:
+            continue
+        print(user)
+        print(f"  Created at: {user.created_at}")
+        # For this long period we ignore any timezone difference.
+        age = datetime.datetime.now(datetime.timezone.utc) - user.created_at
+        if age > datetime.timedelta(weeks=6):
+            print("That's more than 6 weeks ago.")
+            number_inactive_users = number_inactive_users + 1
+            if not dry_run:
+                print("Deleting.")
+                user.delete()
+    if dry_run:
+        print(f"Would delete {number_inactive_users} users out of {number_users} total.")
+    else:
+        print(f"Deleted {number_inactive_users} users out of {number_users} total.")
+
+
 @app_cli.command(
     "delete",
 )