Cognomen Tukac (Tukac 
) , in all the world, is a very rare family name. The cognomen Tukac is characteristic of Croatia, where it is a rare surname, Hungary, and Australia, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Hungary, Croatia, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Tukac | Germany, Turkey, Australia, Hungary, Croatia |