Aiazo

300px|thumb|The Porto Aiazo bridge in Aiazo San Pedro de Aiazo or simply Aiazo () is a village in the south of the municipality of Frades, in Galicia. According to the National Institute of Statistics of Spain (INE), in 2022 it had 152 inhabitants (86 men and 66 women) in three principal neighborhoods (Fontelo, Fonsá and A Devesa).

==Geography== Aiazo is placed in the south-west of the municipality of Frades (Ordes' shire), 30 km driving from Santiago de Compostela and 50 km driving from Coruña. By the south, Aiazo borders with the Arzúa's shire, by the Tambre river; by the north and the east it borders with the rest of Frades, and by the west with the municipality of Oroso. The relief, characterized by the Maruzo river (in the north) and Tambre river (in the south), over a geological area determined by the schist complex of Ordes, forms a landscape with soft hills. In Aiazo there are agrarian lands and forests around the populated areas. The forests are mostly of eucalyptus and pines in plantations, and Galician typical oak forest, with oaks, birchs, alders, willows, etc. Another frequent kind of forest in Aiazo is the riverbank forest near the Tambre, Gaiteiro, and Maruzo rivers. Maruzo's riverbank is part of the Río Tambre's ecological network Natura 2000, this protection will be increased in the future to the Tambre's riverbank. In the beginning, Aiazo's population was concentrated in the three principal neighborhoods, born around an aquifer. Historically Fontelo, Fonsá and A Devesa were the most important villages, the three with similar characteristics of terraced houses. To complement the three first settlements, country houses appeared, like Os Pereiros, in A Devesa, or O Casal, in Fontelo, and new settlements grew, like A Torre or A Carballeira. In the late 20th century, many isolated houses appeared, some of them following a ribbon development in the way between Ponte Carreira and Ordes, and other around the primary neighborhoods. Population ageing is a phenomenon occurring in Aiazo, although in recent years the tendency has been to receive immigrants, especially because of the 2008 crisis.