The Salisbury and Dorset Junction Railway was a railway that ran in the English counties of Wiltshire, Hampshire and Dorset from 1866 until its closure in 1964. Working from Salisbury, trains left the Salisbury to Southampton line at the remote Alderbury Junction. Here there was a signal box, some railway cottages and two platforms on the main line for staff use only. The line ambled south through rural surroundings to meet the Southampton and Dorchester Railway at West Moors. Trains continued through Wimborne to Poole and Bournemouth West.