Marc Stears (born 1971) is a British political theorist. He is Director of the Sydney Policy Lab at The University of Sydney. Before arriving in Sydney in 2018, Marc had been Chief Executive of the New Economics Foundation. He was previously Professor of Political Theory and Fellow of University College, Oxford. His published works have focussed mainly on the development of progressive political movements in the UK and the USA. He was a leading thinker in the Blue Labour movement. He was formerly chief speechwriter to Ed Miliband during the Labour leader's unsuccessful 2015 General Election campaign.