Luarca (Ḷḷuarca in Asturian and as official name) is the principal town in the municipality of Valdés in Asturias, Spain. A fishing and pleasure port, it has a population of 5,354 (2008) and an area of 5.94 km2 (2.29 sq mi). The town is 90 km (56 mi) from the capital, Oviedo. The Nobel laureate for medicine in 1959, Severo Ochoa, was born in Luarca.