Peñarroya de Tastavins (Spanish: [peɲaˈroʝa ðe tastaˈβins]) or Pena-roja (Catalan: [ˈpena ˈrɔjʒa]) is a municipality located in the Matarranya comarca, province of Teruel, Aragon, Spain.

According to the 2004 census (INE), the municipality has a population of 527 inhabitants.

It is part of the Taula del Sénia free association of municipalities.

Pena-roja has a special relationship with the town of Vallibona over the hills in the Ports (comarca).

This article about a location in the Province of Teruel is a stub.