Piero "Pierino" Gros (born 30 October 1954) is a former World Cup alpine ski racer from northwestern Italy.

He won the gold medal in slalom at the 1976 Winter Olympics in Innsbruck, and was the World Cup overall champion in 1974.

Two years later he won the overall title, sharing this result in Italy only with his friend and rival Gustav Thöni and with Alberto Tomba.

Gros also won the bronze medal in the giant slalom at the 1974 World Championships in St. Moritz.

In the meantime he worked as sport commentator for various television stations, including RAI, the Italian State Network.