Arthez-de-Béarn (Occitan: Artés) is a commune in the Pyrénées-Atlantiques department in south-western France. It took its name from the county of Artois (Artés in Occitan, adapted in French as Arthès or Arthez) like three other communes of France (Arthez-d'Asson, Arthez-d'Armagnac, Arthès). In 1950, it got the -de-Béarn extension to differ from the other existing Arthès.