Great Dorset Steam Fair

Great Dorset Steam Fair
Three road locomotives combine to haul a small diesel shunter (2007)
GenreSteam-powered vehicles and machinery
FrequencyAnnually
LocationsDorset, England
Coordinates50°53′23″N 2°5′58″W / 50.88972°N 2.09944°W / 50.88972; -2.09944
Inaugurated1969 (1969)
FounderMichael Oliver
Previous event25-28 August 2022
Area600 acres (2.4 km2)
Websitewww.gdsf.co.uk

The Great Dorset Steam Fair (abbreviated GDSF), is a presently inactive annual show featuring steam-powered vehicles and machinery held in Dorset, England. It covered 600 acres (2.4 km2) and ran for five days. It is regarded to show the largest collection of steam and vintage vehicles and equipment anywhere in the world.

The fair was founded by the Dorset Steam & Historic Vehicle Club, and has been held every summer since 1969. The show is now organised by Michael Oliver's son, Martin Oliver, through Great Dorset Steam Fair Ltd.