Léonhard Giotti "Léon" Quaglia (4 January 1896 – 5 March 1961) was a French ice hockey player and speed skater.

He won a silver medal at the 1923 European Championship and was also the tournament's top scorer, finishing with 10 goals.

[2] At the 1924 European Championship, he won a gold medal with France and scored the game-winning goal against Sweden in the final.

[7] Quaglia also competed as a speed skater at the Winter Olympics in 1924 and 1928, with the best result of sixth place all-around in 1924.

The Trophée Léon Quaglia, a short-track speed skating event, is held annually in Chamonix in his honour.