Fombuena is a municipality in the province of Zaragoza, in the autonomous community of Aragon, Spain. It is located within the comarca of Campo de Daroca, in the southwestern part of the province.
The municipality is sparsely populated, with a recorded population of 14 inhabitants according to the 2004 census (INE). Like many small settlements in rural Aragon, it covers a modest municipal area centred on a small village nucleus.