Athanase Gaudet (June 20, 1848 – April 29, 1888) was a farmer, merchant and political figure in Quebec. He represented Nicolet in the Canadian House of Commons from 1884 to 1888 as a Nationalist Conservative member.
He was born in Gentilly, Canada East, the son of Joseph Gaudet and Deneige Levasseur, and was educated at the Séminaire de Nicolet. In 1887, he married Sara Poissin. He was elected to the House of Commons in an 1884 by-election held after François-Xavier-Ovide Méthot was named to the Quebec Legislative Council. Gaudet died in office at the age of 39. Gaudet also served as mayor of Gentilly from 1882 to 1888 and was a captain in the militia.