Brent "Koko" Kosolofski (born 22 August 1964) is a Canadian amateur light heavyweight and professional light heavy/cruiser/heavyweight boxer of the 1980s and '90s who as an amateur represented Canada at light heavyweight in the 1986 World Amateur Boxing Championships in Reno, Nevada, United States, losing to John Beckles of England, represented Canada and won the bronze medal at light heavyweight in the Boxing at the 1986 Commonwealth Games, in Edinburgh, Scotland, losing to eventual gold medal winner James Moran of England, and represented Canada at light heavyweight in the Boxing at the 1988 Summer Olympics in Seoul, South Korea, losing to Andrea Magi of Italy, and as a professional won the Commonwealth light heavyweight title, his professional fighting weight varied from , i.e. light heavyweight to , i.e. heavyweight.