Martin John Spencer Rudwick is a British geologist, historian, and academic. He is an emeritus professor of History at the University of California, San Diego and an affiliated research scholar at Cambridge University's Department of History and Philosophy of Science. His principal field of study is the history of the earth sciences; his work has been described as the "definitive histories of the pre-Darwinian earth sciences". Rudwick was awarded the Sue Tyler Friedman Medal in 1988. In 2008, he was elected a Fellow of the British Academy (FBA). He was the recipient of the 2007 George Sarton Medal from the History of Science Society.