BOURBONNE-LES-BAINS, a town of France, in the department of Haute Marne, in the arrondissement of Langres, and 21 miles E.N.E. of that town. It is much frequented on account of its hot saline springs, which are found on the site of the old Roman baths. The heat of these springs varies from 120° to 156° Fahrenheit. The number of visitors is about 800 annually. Pop. 3683.