Cognomen Kaucki (Kaucki 
) , all around the world, is a very rare surname. The cognomen Kaucki is habitual in Croatia, where it is quite a rare surname, Australia, where it is a very rare surname, and Germany, where it is an extremely rare surname. Also, Kaucki is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kaucki | Poland, Croatia, Australia, United States, Germany |