Purujosa is a municipality in the province of Zaragoza, within the autonomous community of Aragon, Spain. It is located in the comarca of Aranda, in the foothills of the Iberian System near the Moncayo massif.
The municipality is sparsely populated, with a census-recorded population of 59 inhabitants in 2004. Like many villages in this part of rural Aragon, it has experienced significant depopulation over the twentieth century.
Purujosa is known for its setting among limestone cliffs and its small, tightly clustered village core, typical of the traditional architecture of the region.