Albiac () is a commune in the Haute-Garonne department in southwestern France.
The commune is bordered by five other communes: Loubens-Lauragais to the north, Le Faget to the east, La Salvetat-Lauragais to the southeast, Caraman to the south, and finally by Mascarville to the west.
The inhabitants of the commune are known as Albiacois and Albiacoises in French.