Dorothy Margaret Doig Edgington FBA (née Milne, born 29 April 1941) is a philosopher active in metaphysics and philosophical logic. She was Waynflete Professor of Metaphysical Philosophy at the University of Oxford from 2003 to 2006, where she was also a professor from 1996 to 2001. Before moving to Oxford, Edgington taught for many years at Birkbeck College, London, and now teaches there again part-time. From 2007-2008 she was President of the Aristotelian Society. She is especially well known for her work on the logic of conditionals and vagueness.
Birkbeck College now hosts a lecture series named after Edgington; in 2012, the lectures were given by John McDowell and in 2014 they were given by Rae Langton.
- The Paradox of Knowability (1985), Mind 94:557-568. Presents a resolution of Fitch's paradox based on situation semantics.
- On Conditionals (1995), Mind 104:235-329. Defends an epistemic theory of conditionals against a truth-functional one, as part of the Mind's state of the art series.
- Conditionals (2006), The Stanford Encyclopedia of Philosophy.