Pietrzak

Pietrzak is a Polish surname, it may refer to:
 * Bogusław Pietrzak, Polish football manager
 * Henryk Pietrzak (1914–1990), Polish fighter ace
 * Jan Pietrzak (born 1937), Polish comedian
 * Jim Pietrzak (1953–2018), American football player
 * Konstantin Petrzhak (1907–1998), Soviet physicist of Polish origin
 * Łucja Pietrzak (born 1995), Polish cyclist
 * Michał Pietrzak (born 1989), Polish athlete
 * Rafał Pietrzak (born 1992), Polish footballer
 * Włodzimierz Pietrzak (1913–1944), Polish poet