Saint-Maurice-sur-Adour (French: [sɛ̃ mɔʁis syʁ aduʁ]; literally "Saint-Maurice on Adour"; Occitan: Sent Maurici d'Ador) is a commune in the Landes department in Nouvelle-Aquitaine in southwestern France.

[3] The commune of Saint-Maurice-sur-Adour is located south of Mont-de-Marsan.

It originated as a bastide (fortified town) built in the 13th century by Edward II of England.

The village is rustic, and contains a 16th-century church and the Château de Saint Maurice.

This Landes geographical article is a stub.