Łuczak is a Polish surname. Notable people with the surname include:
Czesław Łuczak (1922–2002), Polish historian
Jan-Marco Luczak (born 1975), German lawyer and politician
Jerzy Luczak-Szewczyk (1923-1975), Polish-Swedish painter, drawer and sculptor
Krystian Łuczak (born 1949), Polish politician
Krzysztof Łuczak (born 1975), Polish long jumper
Mieczysław Marcin Łuczak (born 1955), Polish politician
Olivia Luczak (born 1981), Polish-German boxer
Peter Luczak (born 1979), Polish-Australian tennis player
Tomasz Łuczak, Polish mathematician
Wojciech Łuczak (born 1989), Polish footballer
