North Ostrobothnia (Finnish: Pohjois-Pohjanmaa; Swedish: Norra Österbotten) is a region of Finland. It borders the Finnish regions of Lapland, Kainuu, North Savo, Central Finland and Central Ostrobothnia, as well as the Russian Republic of Karelia. The easternmost corner of the region between Lapland, Kainuu and the Russian border is known as Koillismaa ("North-East Finland").

The region of North Ostrobothnia consists of 30 municipalities, 11 of which have city status (marked in bold).

Koillismaa sub-region

Nivala-Haapajärvi sub-region

Oulu sub-region

Oulunkaari sub-region

Raahe sub-region

Siikalatva sub-region