Zajączkowski

Zajączkowski (feminine: Zajączkowska) is a Polish surname. Notable people include:


 * Andrzej Zajączkowski (1922–1994), Polish sociologist, culture anthropologist, Africanist
 * Bolesław Zajączkowski (1891–1920), Polish lawyer and reserve officer of the Polish Army
 * Christian Zajaczkowski (born 1961), French former footballer and manager
 * Grzegorz Zajączkowski (born 1980), Polish sprinter
 * Małgorzata Zajączkowska (born 1956), Polish actress
 * Piotr Zajączkowski (born 1966), Polish football player and manager
 * Władysław Zajączkowski (1837–1898), Polish mathematician
 * Wojciech Zajączkowski (born 1963), Polish historian, diplomat

Zajančkauskas

 * Vladas Zajančkauskas (1915–2013), Lithuanian war criminal

Zajonczkowski

 * (1859–1920), a Russian state official