The Blyth and Tyne Railway was a railway company in Northumberland, England. It was incorporated in 1853 to unify several private railways and waggonways that were concerned with bringing coal from the Northumberland coalfield to Blyth and to the River Tyne. Over the years it expanded its network to include Ashington, Morpeth and Tynemouth. As coal output increased the company became very prosperous in hauling the mineral to quays for export, and in addition a residential passenger service based on Newcastle built up.