Nykarleby (Finnish: Uusikaarlepyy) is a town and municipality of Finland. It is located in the province of Western Finland and is part of the Ostrobothnia region. The municipality is bilingual, with the majority speaking Swedish (89% ) and the minority Finnish (8%).
The largest employers in the town are Prevex (member of KWH Group), a packaging and piping products manufacturer, Westwood, which manufactures wooden staircases, and in the village of Jeppo, KWH Mirka, a coated abrasives manufacturer. A Swedish-speaking art school (Svenska Konstskolan) is located in Nykarleby town.
The town is located at the mouth of the Lapua river. The name of the place was Lapuan Joensuu or "mouth of Lapua river". The municipality was founded in 1607 by merging parts of Pedersöre and Vörå into a new parish. In 1620, the small village of Lepua was chartered as a city, with the Swedish name Nykarleby, which means "New Karleby", and the Finnish name is a Finnicized version of the same. The town was chartered in the same year as the nearby city of Kokkola, or in Swedish, Gamlakarleby (later, Karleby).