Bagni di Craveggia is a frazione of the municipality of Craveggia, in Piedmont , northern Italy. It is located in the Onsernone Valley at 986 m (3,235 ft), on the border of Switzerland . Road access is through Spruga , a village in the municipality of Onsernone, which lies across the Isorno river. It owes its name to a source of thermal water at 28 °C (82 °F).

Bagni di Craveggia was mentioned for the first time indirectly in the phrase "flumen de aqua calida" (warm water flow) on 11 January 1299 on the occasion of a land cession to the Locarnese Orelli family of recorded in Toceno . Obviously, the thermal springs had been known in the region for a long time.