LUXEUIL, a city in the department of the Upper Saone, and arrondissement of Lure, in France. It is situated in a woody valley on the banks of the Breuchin, and is celebrated for its warm baths, as well as for a spring strongly impregnated with iron, all of which are much visited by invalids. About a quarter of a mile from the town are the remains of some magnificent baths constructed by the Romans. It contains 310 houses and 3200 inhabitants. Long. 6. 19. E. Lat. 47. 50. N.