Fiscal is a municipality in the province of Huesca, in the Sobrarbe comarca of Aragon, Spain. It lies in the Pyrenean foothills of northern Aragon, about 76 kilometres from the city of Huesca.
The municipality stands at an elevation of 768 metres above sea level and covers an area of 170 square kilometres, making it large in extent relative to its population. Its population has been recorded at 327 inhabitants as of 2018, and at 358 inhabitants.
Fiscal is one of the municipalities that make up the Sobrarbe comarca, a district in the Aragonese Pyrenees.