Bourdalat (; ) is a commune in the Landes department in Nouvelle-Aquitaine in southwestern France.
The commune of Bourdalat is located at the eastern end of the Landes department, near the Gers, and in the heart of the Bas-Armagnac, the most famous area of the appellation of the same name.
The stream of the Gaube, a tributary of the Midou, waters the lands of the commune. Lake Charros is located in the northeast end of the commune.