Marianne Louise Limpert (born October 10, 1972 in Matagami, Quebec) is a former freestyle and medley swimmer from Canada, who competed in three consecutive Summer Olympics for her native country, starting with 1992. She won the silver medal in the 200m Individual Medley at the 1996 Summer Olympics in Atlanta, Georgia, and was Canada's flagbearer at the 1998 Commonwealth Games in Malaysia.
In New Brunswick, Canada, there is an annual swim meet named after her. This swim meet is to conclude the ending of the short course season (25m pool, rather than 50m.)