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 16.59 km (6.41 sq mi) in size, with a population of 84 (INE 2006).

• Libiarón (Libiaróu)
• Piorno (43°19′00″N 6°56′00″W / 43.316667°N 6.933333°W / 43.316667; -6.933333)
• Sarcead (Sarciada)
• Solana (A Solá)
• Soutelo (43°18′00″N 6°55′00″W / 43.3°N 6.916667°W / 43.3; -6.916667)
• Testemuñas (Testimuñas)
• Villamea (Villamiá)
• Villarín de Piorno (Vilarín de Piorno)
• Villarpille (Vilarpille) (43°16′00″N 6°55′00″W / 43.266667°N 6.916667°W / 43.266667; -6.916667)

43°18′00″N 6°56′00″W / 43.3°N 6.933333°W / 43.3; -6.933333