Casbas de Huesca is a municipality in the province of Huesca, in the autonomous community of Aragon, Spain. It is located in the northern part of the country, within the comarca of Hoya de Huesca.
According to the 2004 census carried out by the Instituto Nacional de Estadística (INE), the municipality had a population of 296 inhabitants. This small population figure reflects the rural and sparsely settled character typical of many municipalities in the Huesca province.
The town is one of numerous small municipalities that make up the province of Huesca, which lies in the foothills of the Pyrenees in northeastern Spain. Casbas de Huesca is situated at an elevation of approximately 580 metres above sea level.