Béarnese (endonym bearnés or biarnés; French: béarnais [beaʁnɛ] ) is the variety of Gascon spoken in Béarn.
The usage of a specific name for Béarnese lies in the history of Béarn, a viscounty that became a sovereign principality under Gaston Fébus. From the middle of the 13th century until the French Revolution, Béarnese was the institutional language of this territory. The standardised orthography defined by the administrative and judicial acts was adopted outside the limits of Béarn, not only in a part of Gascony, but also in some Basque territories.
