'"Hot Waters"') is a commune in the Cantal department in south-central France.

Its inhabitants are called the Caldaguès, from the Latin meaning 'hot waters', or in French, eaux chaudes; hence the name of the commune, Chaudes-Aigues As its name suggests, there are thirty natural hot water sources with temperatures ranging from 45°C to more than 80°C.

The most famous is the source of the Par river with a water temperature of 82°C - the hottest in Europe - with a flow in the region of 450,000 litres a day.

One local story suggests that the source is so-named because a pig was dressed (paré) or jointed thanks to the hot water.

The Château de Couffour is a ruined castle, dating back to the 15th century, situated in the commune.