Illas (variant: San Julián) is one of three parishes (administrative divisions) in Illas, a municipality within the province and autonomous community of Asturias, by northern Spain's Picos de Europa mountains.
Villages La Barrera La Braña Calaveru Faéu Fonte Friera La Llaguna La Llanaváu La Lláscara Pole Taborneda Trexu Vega La Ventanueva Viesques Xuyana