Slaggyford is a village in the civil parish of Knaresdale with Kirkhaugh, in Northumberland, England about 5 miles (8 km) north of Alston, Cumbria.

Up until Brexit, for the European Parliament its residents voted to elect MEP's for the North East England constituency.

For Local Government purposes it belongs to Northumberland County Council a unitary authority, with Slaggyford lying in the South Tynedale Division.

Since 1983, a 2 foot (0.61 m) narrow gauge railway has been opened on part of the original track bed.

Construction of the section of track from Lintley to Slaggyford was completed in July 2017, and as of June 2018 regular passenger trains had started to run from the station.