Santa Bárbara is one of five parishes (administrative divisions) in San Martín del Rey Aurelio, a municipality within the province and autonomous community of Asturias, in northern Spain.
It is 18.51 km2 (7.15 sq mi) in size, with a population of 533 (INE 2005).
Coordinates: 43°15′00″N 5°37′00″W / 43.25°N 5.616667°W