Serdinya (Catalan: Serdinyà) is a commune in the Pyrénées-Orientales department in southern France.
Serdinya is located in the canton of Olette and in the arrondissement of Prades.
Route nationale 116 (RN 116) connecting Perpignan and Bourg-Madame (near the Spanish and Andorran borders) passes through Serdinya.