Lisac
Lisac is a South Slavic surname meaning 'fox'. Notable people with the surname include:

 Gelu Lisac (born 1967), Romanian water polo player 
 Josip Lisac (born 1950), Croatian linguist and dialectologist
 Josipa Lisac (born 1950), Croatian singer

Other uses:

 Lisac, Croatia, a village in Dubrovnik-Neretva County

Surnames of Croatian origin