Mariano Altuna (born March 4, 1982) is a race car driver born in Lobeira, Argentina. He started his formula career in 1999 in Argentinian Formula Renault, moving on to South American Supertouring Cars and Formula Three Sudamericana in 2000. In 2001 he drove in the Formula Renault 2000 Eurocup, and his since not raced.