Labiarón is one of four parishes (administrative divisions) in San Martín de Oscos, a municipality within the province and autonomous community of Asturias, in northern Spain.It is 16.59km2 in size, with a population of 84 (INE 2006).Villages and hamlets Libiarón (Libiaróu) Piorno Sarcead (Sarciada) Solana (A Solá) Soutelo Testemuñas (Testimuñas) Villamea (Villamiá) Villarín de Piorno (Vilarín de Piorno) Villarpille (Vilarpille)