Cathryn Costello is Andrew W Mellon Professor of Refugee and Migration Law, and a fellow of St Antony’s College. From 2003 – 2013, she was Francis Reynolds Fellow and Tutor in EU and Public Law at Worcester College, Oxford, during which time she also completed her DPhil studies on EU asylum and immigration law.

She has taught a range of public and EU law courses on the Oxford undergraduate and postgraduate curriculum. She began her academic career in 1998 as Lecturer in European Law at the Law School, Trinity College Dublin, and from 2000-2003, she was also the Director of the Irish Centre for European Law. She has been a Visiting Professor at the University of San Francisco and a visiting research fellow at NYU School of Law and Melbourne Law School.