El Perelló is a municipality in the comarca of the Baix Ebre, in Catalonia, Spain. It is located in the southern part of Catalonia, within the province of Tarragona, in the Baix Ebre district whose capital is Tortosa.
The municipality lies in the coastal and inland area of the Baix Ebre, a comarca that stretches between the Ebro Delta and the mountainous terrain of the Catalan Prelittoral Range. El Perelló is one of the municipalities that make up this comarca, alongside others such as Tortosa, Amposta, and Deltebre.
As a Catalan municipality, El Perelló forms part of the autonomous community of Catalonia and is administered under the framework of Spanish local government. The town's official name reflects its Catalan form, El Perelló.