Donald Fontana (1 January 1931 – 17 July 2015) was a former high-ranking Canadian tennis player from the 1950s and 1960s.

In 1957, Fontana reached the fourth round at the US Open Championships where he lost to Budge Patty.

Fontana won the Ontario Open singles tennis championship three times at the Boulevard Club[3] on clay in Toronto.

Fontana represented Canada in Davis Cup eight times from 1955 to 1963 and had a career win-lose record of 7 and 15, 4 and 8 in singles and 3 and 7 in doubles.

Tilden, age 60 then, was found dead in his apartment a few days later on the eve of his proposed departure for the U.S.