The Château de Voltaire is located in Ferney-Voltaire (Ain) in France, close to the border with Switzerland and the city of Geneva. It was Voltaire’s home between 1761 and 1778. It was listed as a historical monument in 1958 and acquired by the French State in 1999.

Ferney-Voltaire is a commune in the Ain department in the Auvergne-Rhône-Alpes region of eastern France. It lies between the Jura Mountains and the Swiss border; it forms part of the metropolitan area of Geneva. It is named for Voltaire, who lived there from 1758.