Northallerton is a market town and civil parish in North Yorkshire, England. It is near the River Wiske in the Vale of Mowbray and had a population of 16,832 in 2011. Northallerton is an administrative centre for York and North Yorkshire Combined Authority and North Yorkshire Council.

North Yorkshire is a ceremonial county in the Yorkshire and the Humber and North East regions of England. It borders County Durham to the north, the North Sea to the east, the East Riding of Yorkshire to the south-east, South Yorkshire to the south, West Yorkshire to the south-west, and Cumbria and Lancashire to the west. Northallerton is the county town.