Châteldon (French pronunciation: [ʃatɛldɔ̃]; Occitan: Chasteladon) is a commune in the Puy-de-Dôme department in Auvergne-Rhône-Alpes in central France.

Château de Châteldon was purchased by Pierre Laval, who went on to serve as the French Prime Minister from 1942 to 1944, in September 1931.

It was the first mineral water exploited in France and transported by bottles to the Court of Louis XIV in Versailles.

In France, one finds the water of Châteldon in the large hotels and restaurants, and in delicatessens.

In 1650, the first doctor of the king, Guy-Crescent Fagon, praised the virtues of Châteldon to Louis XIV.