Ylivieska 上维耶斯卡
Ylivieska is a town and municipality of Northern Ostrobothnia region, Finland. It has a population of 14,986 (30 June 2015), and it serves as the administrative centre for Kalajokilaakso and Pyhäjokilaakso, an area with about 90,000 inhabitants.
Ylivieska is also the commercial center of the Oulu South region, the southern part of the late Oulu province.