William Dzus (5 January 1895, Chernykhivtsi, Kingdom of Galicia and Lodomeria, presently Ukraine, - 19 June 1964, New York City, United States) was born Volodymyr Dzhus (Ukrainian: ????????? ????) and was an American engineer from Eastern Galicia, and the inventor of the Dzus fastener, also known as the quarter-turn fastener.
He was also one of the founders of the Ukrainian Institute of America, a cultural foundation, for which he purchased the Harry F.