Britt-Marie Smedh (born March 22, 1955 in Solna Municipality, Stockholm County) is a former Swedish breaststroke swimmer who represented Stockholmspolisens IF. Smedh participated in the 1972 Summer Olympics, finishing 7th in 100 m breaststroke, 11th in the 200 m breaststroke and 8th in the 4x100 m medley relay.
Smedh is mother to Swedish Olympic medalist Therese Alshammar.