Léon Dion, Canadian political scientist and academic (d. 1997)
Léon Dion (9 October 1922 – 20 August 1997) was a Canadian political scientist.

Dion was born in Saint-Arsène, Rivière-du-Loup Regional County Municipality. He founded the department of political science at Université Laval with Gérard Bergeron and Maurice Tremblay in 1954.

He is the father of former federal foreign affairs minister and former Liberal leader Stéphane Dion.