Zenon Stefaniuk (8 July 1930, in Wojnów – 10 July 1985, in Katowice) was a Polish boxer.
He twice won the gold medal at the European Amateur Boxing Championships in the Bantamweight division at Warsaw 1953 and West Berlin 1955.[1] He participated in the 1956 Summer Olympics in Melbourne but without success.
He was four-time winner of the Polish Boxing Championship (1952–1955), and represented Poland seven times in international matches (six wins, one loss).