diff --git a/changelogs/fragments/11260-keycloak-realm-crash-when-no-realms.yml b/changelogs/fragments/11260-keycloak-realm-crash-when-no-realms.yml
new file mode 100644
index 0000000000..f972fea17b
--- /dev/null
+++ b/changelogs/fragments/11260-keycloak-realm-crash-when-no-realms.yml
@@ -0,0 +1,3 @@
+---
+bugfixes:
+  - keycloak_realm - fixed crash in ``sanitize_cr()`` when ``realmrep`` was ``None`` (https://github.com/ansible-collections/community.general/pull/11260).
diff --git a/plugins/modules/keycloak_realm.py b/plugins/modules/keycloak_realm.py
index 2e96d09265..e31b3e7248 100644
--- a/plugins/modules/keycloak_realm.py
+++ b/plugins/modules/keycloak_realm.py
@@ -846,6 +846,9 @@ def sanitize_cr(realmrep):
     :param realmrep: the realmrep dict to be sanitized
     :return: sanitized realmrep dict
     """
+    if not realmrep:
+        return realmrep
+
     result = realmrep.copy()
     if "secret" in result:
         result["secret"] = "********"