Great Asian Railway Journeys is a 20-part BBC travel and history documentary series produced by Boundless[1] and presented by Michael Portillo, a former Conservative MP and Minister of State for Transport.

[2] Following the format of the highly successful Great British Railway Journeys and related series with Portillo as presenter, each episode features a railway journey in south-east Asia using Bradshaw's Through Routes to the Chief Cities, and Bathing, and Health Resorts of the World (1913)[a] as a historical reference, in order to consider how the places visited have changed over the preceding century.

During the course of the series, Portillo travels a total distance of 2,500 miles and passes through six countries,[1] beginning with Hong Kong then moving on to Thailand, Vietnam, Indonesia and Malaysia before reaching his final destination of Singapore.

[3] One of the main themes he explores is colonial history, examining the legacy of the British, French, Dutch and Portuguese empires, and how the countries involved gained their independence.

[4] The programme was first broadcast as 20 30-minute episodes on consecutive weekday evenings on BBC Two, beginning on 27 January 2020.