Lukačis a Slavic surname. Notable people with the surname include:
Milan Lukač (born 1985), Serbian footballer Nermina Lukac (born 1990), Swedish actress Patrik Lukáč (born 1994), Slovak footballer Rudolf Lukáč (born 1969), Slovak weightlifter Vincent Lukáč (born 1954), Slovak ice hockey player and coach
See also
Lukács, Hungarian rendering of the surname