Arens de Lledó (Spanish: [aˈɾens ðe ʎeˈðo]) or Arenys de Lledó (Catalan: [aˈɾeɲz ðe ʎeˈðo]) is a municipality located in the Matarraña/Matarranya comarca, province of Teruel, Aragon, Spain.

Arens de Lledo is very near neighbours with Horta de San Juan, Catalunya on one side (known for its entrance to the Natural Park El Ports and that it is said that Picasso invented cubism after staying there), and also the cultural capital of Matarraña Calaceite, (Aragon) an old favourite for visiting artists from all round the world.

The village of Arens de Lledó is located in the most eastern part of the province of Teruel.

It is in a hilly area by the river Algars, which marks the border between the Terra Alta (Catalonia) and Aragon.

Due to the large post-war chaos and very cold weather temperatures (which affected farming), there was a migration to and around Barcelona and also to Valencia, in order to search for new employment opportunities.