Crosa may refer to:
People Diego Crosa (born 1976), Argentinian football player Fernando Crosa (born 1979), Argentinian football player Giacomo Crosa (born 1947), Italian journalist and high jumper Liliane Crosa (born 1942), Swiss figure skater
Places Crosa, Piedmont, Italy Lago della Crosa, Switzerland
Other Crosa (fly), genus of tilt-legged flies