Donald Robert James Keenan (August 8, 1938 — November 29, 2005) was a Canadian professional ice hockey goaltender who played in one National Hockey League game for the Boston Bruins during the 1958–59 NHL season. He was working with the St. Michael's Majors team in Toronto when he got the call to replace Harry Lumley in the Boston nets. At that time NHL teams were not carrying a second goaltender.