Albero Bajo is a municipality in the province of Huesca, in the autonomous community of Aragon, Spain. It lies in the comarca of Monegros, in the arid interior of the Ebro Depression in northeastern Spain.
The municipality is small and sparsely populated. According to the 2004 census (INE), it had a population of 75 inhabitants. Like many settlements in the Monegros district, it is a rural village whose economy has traditionally been based on dryland agriculture.