|Full name||Elaine Tanner-Watt|
|Born||February 22, 1951|
Vancouver, British Columbia
|Height||1.60 m (5 ft 3 in)|
|Weight||61 kg (134 lb)|
|Strokes||Backstroke, butterfly, freestyle|
Elaine Tanner-Watt,(born February 22, 1951) is a Canadian former competition swimmer. Olympic medallist, and former world record-holder in two events.
Nicknamed "Mighty Mouse" partly because of her small stature (standing barely five feet tall) and partly due to her competitive drive, Tanner had a large impact on Canadian swimming and is considered one of the top performers in the sport.
During the 1966 Commonwealth Games in Kingston, Jamaica, Tanner won four gold medals and three silvers, becoming the first woman to ever win four golds at a Commonwealth Games and the first person to get seven medals in those games. She won the Lou Marsh Trophy, recognizing her as Canada's best athlete in 1966 — the youngest person to ever receive the award — and was also selected as the country's top athlete overall. The following year at the 1967 Pan American Games in Winnipeg, Tanner won two gold and three silver medals, breaking two world records in the process. Tanner arrived at the 1968 Summer Olympics in Mexico City as a heavy medal favorite. She won three Olympic medals in Mexico City, including two individual silver medals and one relay bronze. However, the media deemed the lack of gold a disappointment and led Tanner to suffer from depression, retiring from competition after the 1968 Olympics at just 18 years of age.
Despite being of Canadian nationality she also won the ASA National British Championships over 110 yards butterfly in 1965.
In 1969, she was made an Officer of the Order of Canada and was inducted into Canada's Sports Hall of Fame in 1971. The Elaine Tanner Award has been presented to Canada's top junior female athlete since 1972.
Following the games, Tanner fell into a depression that lasted decades, developed a serious eating disorder, suffered anxiety attacks and had her first marriage end after 9 years in 1980, with two children that wound up going to the custody of the father in Prince George as Tanner remained in Vancouver. Roaming around Canada doing odd jobs and eventually having a failed second marriage that ended in 1987, by 1988 she was living off her car, jobless, and feeling suicidal, but eventually found her footing again after meeting former lifeguard John Watt. She married him five years later, and lives with him in White Rock, British Columbia. They have a charity organization, Team Underdog.