Retamosa de Cabañas, better known just as Retamosa, is a village belonging to the Cabañas del Castillo municipality, located in the province of Cáceres, in the autonomous community of Extremadura, Spain. According to the 2010 census (INE), the village had a population of 48 inhabitants.

39°34′17″N 5°32′27″W / 39.57139°N 5.54083°W / 39.57139; -5.54083