AIX-LES-BAINS, a town of France, in the department of Savoie, near the Lac du Bourget, and 9 m. by rail N. of Chambéry. Pop. (1901) 4741. It is 846 ft. above the level of the sea. It was a celebrated bathing-place, under the name of Aquae Gratianae, in the time of the Romans, and possesses numerous ancient remains. The hot springs, which are of sulphureous quality, and have a temperature of from 109° to 113° F., are still much frequented, attracting annually many thousands of visitors. They are used for drinking as well as for bathing purposes.