Barnwell railway station is a former railway station in Barnwell, Northamptonshire on the former Northampton and Peterborough Railway line which connected Peterborough and Northampton. The station buildings were designed by the architect John William Livock. In 1846 the line, along with the London and Birmingham, became part of the London and North Western Railway. At grouping in 1923 it became part of the London Midland and Scottish Railway.