Duke of Chablais

The title Duke of Chablais (Italian: Duca di Chiablese, French: duc de Chablais) was a subsidiary title of the Duke of Savoy and later the King of Sardinia, both of the House of Savoy. The title is named after the province of Chablais, whose capital was Thonon-les-Bains.

The title was granted four times to members of the Savoy family. None of them had any children to inherit the title.