Tamás Buday (born July 5, 1952) is a Canadian sprint canoe coach and retired Hungarian sprint canoer. He competed in doubles at the 1976 and 1980 Olympics and won two bronze medals in 1976. He also won thirteen medals at the ICF Canoe Sprint World Championships with four gold (C-2 1000 m: 1978, C-2 10000 m: 1978, 1981, 1983), five silvers (C-1 1000 m: 1981, C-2 1000 m: 1977, 1979; C-2 10000 m: 1974, 1975), and four bronzes (C-1 1000 m: 1977, C-2 10000 m: 1973, 1979, 1982).
In 1987 Buday defected to Canada, where he works as a national canoeing coach. He is a member of the Mississauga Sports Hall of Fame and recipient of the Canadian Coaching Excellence Award. His sons Attila and Tamás, Jr. competed in sprint canoe for Canada at three Olympics.