Clayton T. Evans (born October 28, 1953) is a Canadian former competition swimmer and Olympic silver medalist. Evans represented Canada at the 1972 and 1976 Olympics.
At the 1976 Summer Olympics in Montreal, Quebec, he swam the butterfly leg for Canada's second-place relay team in the final of the men's 4×100-metre medley relay, together with Stephen Pickell (backstroke), Graham Smith (breaststroke) and Gary MacDonald (freestyle).[3] The Canadians finished in 3:45.94, behind the American team that set a new world record of 3:42.22. Individually, Evans also competed in the men's 100-metre butterfly, finishing sixth in the event final with a time of 55.81 seconds.[1]
After the 1976 Olympics, Evans continued to train in the hope of competing at the 1980 Summer Olympics. At the 1979 Pan American Games in San Juan, Puerto Rico, he competed in the men's 100-metre butterfly, finishing third with a time of 56.63 seconds.[4] He could not compete in the 1980 Olympics because of the boycott of the Moscow Summer Olympic Games.[1]