Ratajczak is a Polish surname. It is a patronymic surname of Northern Polish originJęzyk polski, Volumes 46-47, p. 86 formed by the addition of the diminutive suffix -czak, Gramatyka języka polskiego, Wiedza Powszechna, Warsaw, 1993 to the patronymic nickname or surname Rataj . It may refer to:
Alicja Ratajczak (born 1995), Polish cyclist Dariusz Ratajczak (1962–2010), Polish historian Donald Ratajczak (born 1942), American economist Elżbieta Ratajczak (born 1946), Polish politician Jacek Ratajczak (born 1973), Polish footballer Michael Ratajczak (born 1982), German footballer Kevin Ratajczak (born 1985), German singer
See also Ratajczyk
References