William Ray Kennedy (born October 26, 1952) is a Canadian former swimmer who competed at the 1972 Summer Olympics.

He swam for Canada's third-place team in the preliminary heats of the men's 4x100-metre medley relay.

[1] He was ineligible to receive a medal under the Olympic swimming rules then in effect, however, because he did not swim in the event final.

He also competed in the preliminary heats of the men's 200-metre backstroke, but did not advance.

[1] Kennedy won a bronze medal in the 100-metre backstroke at the 1971 Pan American Games in Cali, Colombia, and gold medals in the 100-metre backstroke and 4x100-metre medley relay at the 1970 Commonwealth Games in Edinburgh, Scotland.