Eugene Francis Vincent Kusielewicz (October 12, 1930 – December 10, 1996) was an American historian, author, educator, and a leading spokesperson on Polish and Polish-American affairs in the United States.

"[3] Kusielewicz began his teaching career in 1953 and worked at both public and private schools, before receiving a faculty appointment in the History Department at St. John's University in 1955.

Zdzisław M. Musialik, a Catholic priest and historian affiliated with the Józef Piłsudski Institute of America, Stanley S. Seidner, and Zofia Sywak.

Kusielewicz also served as the editor of the Foundation's Monthly Newsletter, and had earlier written a weekly column for the Polish American World, a newspaper that he had helped to found.

Kusielewicz served as editor of Twayne Publishers' Library of Polish Studies, which brought several important works back into print and made others available to English readers.