Keith Spaith (April 8, 1923 – March 1, 1976) was a Canadian football player for the Calgary Stampeders from 1948 to 1954.
In 1947, Spaith played one season in the Pacific Coast Professional Football League, with the Hawaiian Warriors.
His team finished 7–2 and won the league title, though it was later discovered that players had bet on games.
In his rookie season he led the Stamps to an undefeated 12–0 record (the last team in Canadian professional football to do so) while being named an All-Star and being named the best player in the Western Division with the Jeff Nicklin Memorial Trophy.
His oldest son, Robert Spaith, is a well-known sculptor in Alberta, Canada.