Geza Tatrallyay (born 11 February 1949) is a Canadian fencer and author. He competed in the individual and team épée events at the 1976 Summer Olympics.
Tatrallyay was born in Budapest, Hungary in 1949 and escaped with his family in 1956, emigrating to Canada. He attended the University of Toronto Schools as a teenager, going on to graduated from Harvard University; Oxford University, as a Rhodes Scholar; and London School of Economics.