Brent "Koko" Kosolofski (born 22 August 1964) is a Canadian former professional boxer who competed from 1990 to 1996.
Competing at light heavyweight as an amateur, Kosolofski represented Canada at the 1986 World Championships in Reno, Nevada, United States, losing to John Beckles of England.
At the 1988 Summer Olympics in Seoul, South Korea, he lost to Andrea Magi of Italy.
As a professional Kosolofski won the Commonwealth light heavyweight title.
This biographical article related to a Canadian boxer is a stub.