The Royal Abbey of Santa Maria de Poblet () is a Cistercian monastery. The abbey is located at the feet of the Prades Mountains, in the comarca of Conca de Barberà, in Catalonia (Spain). It was founded in 1150 by Ramon Berenguer IV, Count of Barcelona. It was the first of three monasteries that made up the "Cistercian triangle". The other two were Vallbona de les Monges and Santes Creus. The main architect was Arnau Bargués.