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Last name Čau (Ciao
, Чау
, Čau) , all over the world, is quite a rare surname. The family name Čau is habitual in Southern Europe, particularly Italy, where it is quite a rare surname, Albania, and North Macedonia, where it is a rare surname. Not in comparison with a country's population, it is commonest in Italy, Morocco, and Indonesia. Also, Čau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ciao | Italy, Indonesia, China, Algeria, Morocco |
| Чау | Kazakhstan, Russia, Ukraine |