Herman Wright Cappelen (born 1967) is a Norwegian philosopher. He is professor of philosophy at the University of Oslo and (one fifth time) at the University of St Andrews in Scotland. He works primarily on philosophy of language and philosophical methodology and related areas in epistemology, philosophy of mind, and metaphysics. In 2013, he became editor of the journal Inquiry. Cappelen is the son of author and publisher Peder Wright Cappelen and actress Kari Simonsen.
Cappelen received a BA in Philosophy, Politics, and Economics from the University of Oxford, Balliol College, in 1989. In 1996, Cappelen received his PhD from the University of California, Berkeley. The title of his dissertation was "The Metaphysics of Words and the Semantics of Quotation". His advisors were Charles Chihara, Stephen Neale, and John Searle.
Since 2015, Cappelen has been Professor at the University of Oslo, where he co-directs CSMN's ConceptLab. He is running, with Øystein Linnebo and Camilla Serck-Hanssen, a project on conceptual engineering funded by a Toppforsk award from the Research Council of Norway. Prior to that, he was, since 2007, Professor and Arché chair at the University of St Andrews. He has previously held positions at Somerville College, Oxford, University of Oslo, and Vassar College. He has been the Director of the Arché Philosophical Research Centre and was co-investigator of two research projects funded by longterm AHRC grants: "Contextualism and Relativism" and "Intuitions and Philosophical Methodology". Cappelen was one of the original applicants for the research center Centre for the Study of Mind in Nature (Norwegian Centre of Excellence) at the University of Oslo. Cappelen has been a member of the Norwegian Academy of Science and Letters since 2008.