Glenroy John Gilbert (born August 31, 1968) is a former Canadian athlete, winner of gold medal in 4x100 m relay at the 1996 Summer Olympics.

Born in Port-of-Spain, Trinidad and Tobago, Glenroy Gilbert formed along with Robert Esmie, Bruny Surin and Donovan Bailey the best 4x100 m relay team in the mid-1990s.

Gilbert made his debut at the major international championships at the 1988 Summer Olympics, where he was 21 in a long jump. At the 1990 Commonwealth Games, Gilbert was eighth in long jump and reached to the semifinal as a member of Canadian 4x100 m relay team at the 1992 Summer Olympics.

Gilbert won his first medal at the 1993 World Championships, when the Canadian 4x100 m relay team finished in a third place. At the 1994 Commonwealth Games, Gilbert won the gold medal in 4x100 m relay and was fifth in 100 m. Gilbert also competed in bobsleigh at 1994 Winter Olympics, where he finished fifteenth in two-man bobsled and eleventh in four-man bobsled.

In 1995, Gilbert won a gold medal in 100 m at the Pan-American Games and was a member of gold medal winning Canadian 4x100 m relay team at the 1995 World Championships.

At the Atlanta Olympics, the Canadian relay team weren't the hot favourites, although they were won almost all the titles available during the last couple of years. But they had done it in absence of United States. At the 4x100 m relay final, the Canadian team beat United States by almost half a second, to establish itself the best relay team in the world. Gilbert also reached to the quarterfinal of 100 m.

Gilbert and the Canadian team won a gold medal again at the 1997 World Championships and at the 1998 Goodwill Games , but again in absence of United States. At the 1999 World Championships the Canadian team were disqualified in semifinal and Gilbert ended his running career after the 2000 Summer Olympics, where the Canadians were eliminated in the semifinal.

After his retirement, Gilbert worked for a short time in CBC radio in Ottawa and is now a coach of Canadian 4x100 m relay team.