Ignazio Dionisi (born February 27, 1913) was an Italian hockey player. He was a long-time member of the Italian National Team, playing for them at four World Championships and two Olympic Games between 1933 and 1948. At the club level, Dionisi spent most of his 20+ year club career with HC Milano and HC Diavoli Rossoneri Milano. He also played for AC Milanese DG in 1941-42.