Bax is a small rural village and commune in the Haute-Garonne department in southwestern France.
The commune is bordered by six other communes: Latrape to the north, Canens to the east, Lapeyrère to the southeast, Latour to the south, Montesquieu-Volvestre to the west, and finally by Mailholas to the northwest.
Its inhabitants are called Baxéens in French.