Ray Monk FRSL (born 1957) is a British philosopher. He is Professor of Philosophy at the University of Southampton, where he has taught since 1992.
He won the John Llewellyn Rhys Prize and the 1991 Duff Cooper Prize for his biography of Ludwig Wittgenstein, Ludwig Wittgenstein: The Duty of Genius. His interests lie in the philosophy of mathematics, the history of analytic philosophy, and philosophical aspects of biographical writing. His biography of Robert Oppenheimer was published in 2012.
In 2015 he was awarded a Fellowship by the Royal Society of Literature
- Ludwig Wittgenstein: The Duty of Genius. London: Vintage, 1991.
- Bertrand Russell: The Spirit of Solitude 1872–1921. London: Vintage, 1996.
- Russell. London: Weidenfeld & Nicolson, 1997.
- Bertrand Russell: The Ghost of Madness 1921–1970. London: Vintage, 2001.
- How to Read Wittgenstein. London: Granta, 2005.
- Inside the Centre: the Life of J. Robert Oppenheimer. London: Jonathan Cape, 2012