The Swindon and Cricklade Railway is a heritage railway in Wiltshire, England, that operates on a short section of the old Midland and South Western Junction Railway line between Swindon and Cricklade.

The Midland and South Western Junction Railway (M&SWJR) was an independent railway built to form a north–south link between the Midland Railway and the London and South Western Railway in England, allowing the Midland and other companies' trains to reach the port of Southampton. The M&SWJR was formed in 1884 from the amalgamation of the Swindon, Marlborough and Andover Railway and the Swindon and Cheltenham Extension Railway. The line was absorbed by the Great Western Railway at the 1923 grouping of the railways, and became part of British Railways on nationalisation in 1948. The railway closed to passengers in 1961, and to goods between 1964 and 1970. A small part of it has been reopened as the heritage Swindon and Cricklade Railway.