WOOLER, a market-town of England, county of Northumberland, on a small affluent of the Till, 45 miles N.N.W. of Newcastle. It stands on a gentle eminence on the eastern declivity of the Cheviot Hills, and was at one time much frequented by invalids. It has a neat parish church, several dissenting places of worship, a grammar school, public library, mechanics' institute, and a dispensary. In the neighbourhood are remains of ancient fortifications, and a pillar commemorative of the defeat of the Scots under Douglas by Earl Percy in 1402. Pop. of parish (1851) 1911.