Maria Vittoria Trio (born 18 December 1947 in Turin) is a retired Italian long jumper
In 1966, before the 1966 European Athletics Championships, after the introduction of the gender verification testing in sports, she was asked to undergo, but Trio, like many athletes at the time, refused and preferred to withdraw from the competitions in 1967.
In 2012, her 6.52 m, after 45 years, is still the ninth best all-time Italian performance.
She has twice won the individual national championship.