María Olay García (born 3 June 1978 in Gijón, Asturias) is a former breaststroke swimmer from Spain, who competed at the 1996 Summer Olympics in Atlanta, Georgia for her native country. In the Georgia Tech Aquatic Center she finished in 28th place in the 100m breaststroke, and was eliminated with the women's relay team in the 4×100m medley (15th position).