Pyrénées-Orientales (English: Eastern Pyrenees; Catalan: Pirineus Orientals; Occitan: Pirenèus Orientals) is a department in the region of Occitanie in southern France; it is next to the northern Spanish border and the Mediterranean Sea.

The department is formed by the historically Catalan-speaking area of Rosillon (with its different parts: Roussillon (modern), Haute Cerdagne (or simply Cerdagne), Conflent, Vallespir and Capcir) and Fenouillèdes, an historically Occitan-speaking area.