Andrzej Zajaczkowski (27 May 1922 in Lublin – 16 December 1994 in Warsaw) was a Polish sociologist, cultural anthropologist, and Africanist.
In 1978 he was made professor of the Polish Academy of Sciences and the University of Warsaw; he became the director of the Center for Studies on Non-European Countries (Polish Academy of Sciences) in 1981.
He specialized in historical sociology and the sociology of developing countries.