Sharon Firth CM ONWT (born 31 December 1953) is a Canadian former cross-country skier who competed in the Winter Olympics in 1972, 1976, 1980 and 1984. Firth's mother was Gwich'in and her father was Métis. She and her sister grew up in the Gwich'in First Nation. From 1968 to 1985, Sharon and Shirley Firth were both members of Canada’s national cross-country team. They were the first female Indigenous athletes to compete for Canada in the Winter Olympic Games. The twins obtained a total of 79 medals at the national championships.