Warrington, known in Māori as Ōkāhau, is a small settlement on the coast of Otago, in the South Island of New Zealand. It is situated close to the northern shore of Blueskin Bay, an area of mudflats north of Dunedin, and is administered as part of Dunedin City. Warrington is 3 km (1.9 mi) from State Highway 1 linked by Coast Road. The Main South Line railway passes through the township and a tourist train, the Seasider passes through the settlement once or twice a week between Dunedin and Palmerston.