- Source: Poljak (surname)
Poljak is a surname. Notable people with the surname include:
Allegra Poljak (born 1999), Serbian professional footballer
Eszter Poljak (born 1952), Yugoslav sports shooter
Maja Poljak (born 1983), Croatian volleyball player
Mateo Poljak (born 1989), Croatian professional footballer
Miroslav Poljak (1944–2015), Croatian water polo player
Roberto Poljak (1932–2019), Argentine biophysicist and immunologist
Stjepan Poljak (born 1983), Croatian football midfielder
Željko Poljak (born 1959), Croatian basketball coach
