Adélard Turgeon, CMG CVO KC (December 18, 1863 – November 14, 1930) was a Canadian lawyer and politician.

Born in Saint-Étienne-de-Beaumont (Beaumont), Canada East, Turgeon attended the Collège de Lévis before receiving a Bachelor of Laws degree from Université Laval at Quebec.

He was called to the Quebec Bar in 1887 and started a law career.

In 1897, he was appointed commissioner of colonization and mines in the cabinet of Félix-Gabriel Marchand and continued the position in the cabinet of Simon-Napoléon Parent.

In 1909, he was appointed to the Legislative Council of Quebec representing the division of La Vallière and served as Speaker.