| Guylaine Cloutier | |
| Fullname: | Guylaine Cloutier |
| National Team: | Canada |
| Strokes: | Breaststroke |
| Club: | Club Aquatique Montréal Olympique |
| Birth Date: | October 1, 1971 |
| Birth Place: | Lévis, Quebec |
| Height: | 1.65m (05.41feet) |
| Weight: | 53kg (117lb) |
Guylaine Cloutier (born October 1, 1971) is a former competition swimmer from Canada, who was a breaststroke specialist. Cloutier competed internationally at three consecutive Summer Olympics, starting in 1988. Her best Olympic finish was fourth place in the 100-metre breaststroke at the 1992 Summer Olympics in Barcelona, Spain.