Avner Offer (born 1944) is an economic historian who held the Chichele Professorship in Economic history at the University of Oxford, England. He is an Emeritus Fellow of All Souls College, Oxford, and a fellow of the British Academy. He has published on international political economy, law, the First World War and land tenure. During the 1990s and 2000s, Offer's main interest was in post-war economic growth, particularly in developed societies, and the challenges that affluence presents to well being. His most recent work is on the strife between neoclassical economics and social democracy, each of them vying to shape the post-war decades. Apart from his academic work, he has published a memoir of the Six Day War in Israel.