100 Welsh Heroes was a poll run in Wales as a response to the BBC's 100 Greatest Britons poll of 2002. The Welsh poll was carried out mainly on-line starting on the 8 September 2003 and finishing on the 23 February 2004. The results were announced on St David's Day, 1 March 2004.
The poll was operated by Culturenet Cymru Ltd, a Welsh Assembly funded body based at the National Library of Wales in Aberystwyth. The project was managed by Jon Curtis, the Marketing Manager of Culturenet Cymru, with media work conducted by TM, a communications company based in Cardiff. At the time of the results being announced the organisers claimed that the 81,323 nominations and votes made it the largest online poll ever conducted in Wales.
The Top 100 were: