Authon-du-Perche (French pronunciation: [otɔ̃ dy pɛʁʃ], literally Authon of the Perche) is a commune in the Eure-et-Loir department in northern France.

On 1 January 2019, the former commune Soizé was merged into Authon-du-Perche.

[3] The source of the river Braye is near the commune.

[4] Population data refer to the commune in its geography as of January 2023.

This Eure-et-Loir geographical article is a stub.