The Bedford–Northampton line was a branch of the Midland Railway which served stations in three counties: Northampton and Horton in Northamptonshire, Olney in Buckinghamshire and Turvey and Bedford in Bedfordshire, England. Opened in 1872, the intermediate stations closed to passengers in 1962, leaving a small section between Northampton and Piddington station to remain open until 1981 for the purposes of the Ministry of Defence establishment. The track remains down on another small section of the line between Northampton and Brackmills. The reopening of the line has been proposed by the Bedfordshire Railway & Transport Association.

Olney is a market town and civil parish in the unitary authority area of the City of Milton Keynes, Buckinghamshire, England. At the 2011 Census, it had a population of 6,477.