Robert Allen "Bob" Gassoff (April 17, 1953 in Quesnel, British Columbia – May 27, 1977) was a professional ice hockey player. He played four seasons in the NHL for the St. Louis Blues. He was killed in a motorcycle accident on the country property of his friend and team-mate Garry Unger near Gray Summit, Missouri; his number 3 was subsequently retired by the Blues. He played in 245 NHL games, scoring 11 goals and 47 assists with 866 penalty minutes.