Augustin Bourbonnais (French pronunciation: [oɡystɛ̃ buʁbɔnɛ]; March 19, 1850 – August 5, 1923) was a Canadian physician and politician.

Born in Saint-Clet, Soulanges County, Canada East, the son of Michel Bourbonnais and Angèle Houle, Bourbonnais was educated at the Seminary of Sainte-Thérèse, where he graduated a B.A.

He first practised at Syracuse, New York and moved to Coteau Landing, Quebec.

His younger brother, Avila-Gonzague Bourbonnais, was a member of the Legislative Assembly of Quebec from 1886 to 1902.

This article about a Quebec Member of Parliament from the Liberal Party of Canada is a stub.