Ambroise-Hilaire Comeau (September 27, 1860 – August 25, 1911) was a merchant and political figure in Nova Scotia, Canada.

He was born in 1860 in Saulnierville, Nova Scotia, of Acadian descent to Hilaire Comeau and Madeleine LeBlanc.

He received his education at Meteghan River and later he attended an English high school at Weymouth Bridge.

He presented a bill in 1892 to incorporate Collége Saint Anne and allow the institution to award Bachelor's, Master's and Doctorate's degrees.

He published three newspapers in French: L'Echo, journal acadien de la baie Sainte-Marie (lit.