The Blue Pullman was a luxury train used from 1960 to 1973 by British Railways. The Blue Pullmans were the first diesel-electric multiple units designed for high-speed.

Named after their custom blue livery, the Blue Pullmans were conceived under the British Railways 1954 Modernisation Plan, to create new luxury first-class diesel express trains, to compete with the motor car and the emerging domestic air travel market. Although not entirely successful in their own right, the Blue Pullmans demonstrated the possibility of high-speed fixed-formation multiple-unit Inter City train services

Towards the end of their operational life the Blue Pullmans gained the British Rail TOPS classification of Class 251 (motor cars) and Class 261 (kitchen and parlour cars), although they never carried these numbers.

Initially, the 6 car Blue Pullmans were used on the London Midland Region of British Rail, from London to Manchester. The trains were withdrawn from the London Midland Region in 1967 following electrification of the Euston to Manchester line, and they were transferred to augment Blue Pullmans on the Western Region.