Tristram James Avondale Stuart (born 12 March 1977) is an English author and campaigner.

[5] In 2011 Tristram Stuart won the international environmental Sophie Prize and the "Observer Food Monthly Outstanding Contribution Award" for his ongoing campaign to solve the global food waste scandal.

[2] He is the author of The Bloodless Revolution: Radical Vegetarians and the Discovery of India (Harper Collins Ltd, 2006) published in the United States as The Bloodless Revolution: A Cultural History of Vegetarianism From 1600 to Modern Times (W.W. Norton, 2007).

[7][8] He is a regular contributor to newspapers, and radio [including a short programme on BBC Radio 4 in 2012 titled: 'How to waste less food'][9] and television programs in the UK, US and Europe on the subject of food, the environment and freeganism.

He founded the charity Feedback which has replicated the Feeding the 5000 campaign and event model in several countries and has now been commissioned by the European Commission and the United Nations Environment Programme (UNEP) to spread the campaign globally.