Łuczak is a Polish surname. Notable people with the surname include:
Czesław Łuczak (1922–2002), Polish historianJan-Marco Luczak (born 1975), German lawyer and politicianJerzy Luczak-Szewczyk (1923-1975), Polish-Swedish painter, drawer and sculptorKrystian Łuczak (born 1949), Polish politicianKrzysztof Łuczak (born 1975), Polish long jumperMieczysław Marcin Łuczak (born 1955), Polish politicianOlivia Luczak (born 1981), Polish-German boxerPeter Luczak (born 1979), Polish-Australian tennis playerTomasz Łuczak, Polish mathematicianWojciech Łuczak (born 1989), Polish footballer