Family name Klioumis (Klioumis 
) , around the globe, is a very rare last name. The family name Klioumis is habitual in Greece, where it is a rare surname, Australia, where it is a very rare surname, and Canada, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Greece, Australia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Klioumis | Greece, Canada, United States, Australia |