Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

Cathryn Costello


Andrew W Mellon Professor of International Refugee and Migration Law / Professor of Fundamental Rights and Co-Director, Centre for Fundamental Rights, Hertie School, Berlin

Cathryn Costello is on special leave from August 2020 to August 2022 as Professor of Fundamental Rights and Co-Director of the Centre for Fundamental Rights, Hertie School, Berlin.


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.

Cathryn has published widely on many aspects of EU and human rights law, including asylum and refugee law, immigration, EU Citizenship and third country national family members, family reunification and immigration detention. Publications include The Human Rights of Migrants and Refugees in European Law (Oxford University Press, 2015).

She also researches the intersections of immigration, asylum and labour law. Her work on this theme includes (with Mark Freedland) Migrants at Work: Immigration and Vulnerability in Labour Law (Oxford University Press 2014) and 'Migrants and Forced Labour: A Labour Law Response' in A Bogg, C Costello, A Davies, J Prassl (eds) The Autonomy of Labour Law (Hart Publishing 2014).

Cathryn has undertaken research for UNHCR, the Council of Europe and the European Parliament. She is regularly invited to address diverse audiences, both academic and practical, such as the European Council of Refugees and Exiles (ECRE) and International Association of Refugee Law Judges (IARLJ). She is also a Senior Research Associate of the Refugee Law Initiative of the University of London.

Cathryn welcomes approaches from doctoral candidates with projects in refugee law, EU asylum and migration law, and the labour and human rights of migrants and refugees.

Key publications

Recent publications

More publications