Brian Roy "Spinner" Spencer - Born September 3, 1949 in Fort St. James, British Columbia – Died June 3, 1988 in Riviera Beach, Florida, was a Canadian professional Ice Hockey player.

Brian Spencer was drafted in the fifth Round, 55th overall by the Toronto Maple Leafs in the 1969 NHL Entry Draft. On December 12, 1970, when Spencer was called up to play with the Maple Leafs in what would be his first NHL game on television, he telephoned his father Roy in British Columbia to tell him to watch the game that night on Hockey Night in Canada. Spencer was to be interviewed between periods of the game. However, a game featuring the Vancouver Canucks versus the California Golden Seals was aired instead. Infuriated, Roy Spencer drove 135 kilometres (84 mi) to Prince George, where the closest CBC Television station, CKPG-TV, is located. When he arrived, he ordered station staff, at gunpoint, to broadcast the Maple Leafs game instead. The station complied, but as Roy Spencer left the station, he was confronted by the RCMP. After a brief stand-off Roy Spencer was shot and killed.

After several seasons with Toronto and the New York Islanders, Spencer was acquired by the Buffalo Sabres. Spencer had his best offensive production in a Sabres uniform when he scored 41 points (12 goals, 29 assists) in 1974–75. Spencer played well in Buffalo and was extremely popular with the fans at Buffalo's Memorial Auditorium. His hustle, aggressive play, and hitting ability was something the fans admired. Spencer developed into a solid two-way player. He would however be dealt to the Pittsburgh Penguins in September 1977.

His offensive production declined as he took on the role of a checking forward with the Penguins. Spencer's last NHL season came in 1978–79 when he played seven games for Pittsburgh. He then finished his playing career in the AHL (Binghamton, Springfield and Hershey) and retired after the 1979–80 season.

After Hockey, Spencer submerged himself in a life of drugs and violence. In 1987 he was charged with kidnapping and murder and faced the death penalty. Family and friends, including ex-teammates, gathered around him and tried to help. A former teammate from the Buffalo Sabres, Rick Martin, tried to help by testifying as a character witness at his trial. The jury returned a not guilty verdict in March 1988 and Spencer vowed to change his life. Despite the acquittal and a move to Florida, Spencer's life continued to spiral out of control. In almost a similar manner to how his father's life ended, Spencer's life would end the same way three months later: shot and killed at gunpoint, this time in a robbery following a crack cocaine purchase in Riviera Beach, Florida.

Spencer was survived by five children from two marriages, and his twin brother, Byron.

A book on Brian's life Gross Misconduct: The Life of Spinner Spencer, written by Martin O'Malley, was adapted in 1993 by Atom Egoyan into a made-for-television film in Canada, Gross Misconduct.