[Revised entry by Paul Snowdon and Anil Gomes on May 4, 2023. Changes to: Main text, Bibliography] Peter Frederick Strawson (1919 - 2006) was an important and influential philosopher of the late twentieth century. His writings range over philosophical logic, the philosophy of language, metaphysics, epistemology and the history of philosophy. Across these debates, Strawson aimed to identify the most fundamental concepts involved in our ordinary ways of thinking. He took these to include such core concepts as those of body, person, space and time, and causation. Strawson aimed to show both that sceptical challenges to...