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Dr. Róisin Costello

Assistant Professor (Law)
HOUSE 39, COLLEGE
      
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Dr. Róisin Costello

Assistant Professor (Law)
HOUSE 39, COLLEGE

 ROISIN.ACOSTELLO@tcd.ie

 3531896 1939


Róisín is an Assistant Professor of EU and International Law and a practicing barrister. Róisín is a graduate of the LLB and PhD programmes at TCD, The Honorable Society of Kings Inns, the Institut d'études politiques de Paris and Georgetown Law. Prior to joining TCD Róisín was an Assistant Professor at Maynooth University (2019-2020) and at Dublin City University (2020-2023). Róisín's research has been funded by the IRC, the ESRC, and the AHRC among others. She is the author of `Privacy Law in Ireland (Bloomsbury, 2023), `Law in Irish Literature' (Edinburgh University Press, 2025) and is the co-author of the forthcoming "The Data Protection Acts and the GDPR: A Commentary" (Bloomsbury, 2025). Róisín has also co-edited "Critical Reflections on the EU"s Data Protection Regime" (Hart, 2024) and "Data Protection After Brexit: Reflections from the UK and Ireland" (Hart, 2023). Róisín researches and works on EU law (with a particular focus on privacy and data protection law and EU constitutionalism), minority language rights, and law and literature. Róisín welcomes expressions of interest from prospective PhD students and post-doctoral researchers whose research interests align with those noted above or whose research engages with EU law, or relevant areas of international law, more broadly.
  data privacy   Data Protection Law   EU Law   Governance, Human Rights, European Union Law   International Law   law and technology   Public International Law   Sociolegal Studies
Project Title
 Fundamental Rights and the Rule of Law in a Digital Future
From
2018
To
2020
Summary
Funding Agency
Irish Research Council
Programme
Government of Ireland Postgraduate Award
Project Type
Doctoral Research
Person Months
24
Project Title
 International Student Scholarship
From
2014
To
2015
Summary
Funding Agency
Georgetown Law
Project Type
LLM Scholarship
Project Title
 The Legal Future of the Irish Language
From
2020
To
2021
Summary
Funding Agency
Society of Legal Scholars
Programme
Event Grant
Project Type
Conference
Person Months
12
Project Title
 Building a Cross-border Data Protection Network
From
2020
To
2022
Summary
Funding Agency
Economic & Social Research Council/Irish Research Council
Programme
Networking Grant
Project Type
Network building
Person Months
24
Project Title
 Supporting Irish Language Use on a Cross-Community Basis"
From
2021
To
2022
Summary
Funding Agency
Irish Research Council & The Department of Foreign Affairs
Programme
New Foundations Award
Project Type
Network building
Person Months
12

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Language Skill Reading Skill Writing Skill Speaking
French Fluent Fluent Fluent
Irish Fluent Fluent Fluent
Details Date From Date To
Incorporated Council of Law Reporting of Ireland January 2024 Present
Director and Board Member of the Irish Centre for European Law October 2021 Present
Board Member of the Irish Supreme Court Review February 2022 Present
Róisín Á Costello, Subsequent Legal Developments and Admissibility of Evidence: DPP v Smyth [2024] IESC 22, Irish Supreme Court Review, 2025, Journal Article, PUBLISHED
Róisín Á Costello, Anglophone Presumptions in the Courtrooms of Wales and the Republic of Ireland: Some Initial Thoughts on Achieving Language-neutral Courtrooms, Revista de Llengua i Dret, 2025, Journal Article, IN_PRESS
Róisín Á Costello, Law in Irish Literature: Critical Approaches to Institutions, Power and Identity, Edinburgh, Edinburgh University Press, 2024, Book, IN_PRESS
Brian Merriman in, editor(s)Eric Falci , The Cambridge History of Irish Poetry, Cambridge, Cambridge University Press, 2024, [Róisín Áine Costello], Book Chapter, PUBLISHED
Non-Material Damages under Article 82 GDPR in, editor(s)Róisín Á Costello and Mark Leiser , Critical Reflections on the EU"s Data Protection Regime, Oxford, Hart, 2024, [Róisín Á Costello], Book Chapter, IN_PRESS
Irish Language Rights and the Courts of Justice Act 1924 in, editor(s)Niamh Howlin , The Courts of Justice Act 1924, Dublin, Four Courts Press, 2024, [Róisín Á Costello and Judge Úna Ní Raifeartaigh], Book Chapter, IN_PRESS  URL
Róisín Á Costello, The Test in Kelly v Hennessy and Article 82(1) GDPR, Irish Judicial Studies Journal, 8, (2), 2024, p22-, Journal Article, PUBLISHED
Róisín Á Costello, The Identity and Language (Northern Ireland) Act 2022 and compliance with the European Charter of Regional and Minority Languages, Northern Ireland Legal Quarterly, 2024, Journal Article, PUBLISHED
Róisín Á Costello, McGee v Attorney General: The Beginning (and the End?) of Patriarchal Privacy in Irish Law, Dublin University Law Journal, 2024, Journal Article, IN_PRESS
Róisín Á Costello, A Computer"s Body and Its Soul: Search and Seizure of Digital Devices Following DPP v Quirke, The Irish Jurist, 2024, Journal Article, PUBLISHED
  

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Róisín Á Costello, Critical Reflections on the EU's Data Protection Regime, Oxford, Hart, 2024, Book, PUBLISHED
Róisín Áine Costello, The Decision in Quirke v DPP: Dividing A Computer's Body and its Soul, UCD Public Law Conference, University College Dublin, 2023, 2023, Invited Talk, PUBLISHED
Róisín Áine Costello, Mionteangacha agus léirmhíniú reachtúil i R on the application of Driver v Rhondda Cynon Taf County Borough Council [2020] EWCA Civ 1759, Cumann Barra na Gaeilge: Ceardlann Forbairt Gairmiúil, An Leabharlann Dlí, 25 September 2023, 2023, Invited Talk, PUBLISHED
Róisín Áine Costello, Reflections and Recommendations on the Identity and Language (Northern Ireland) Bill 2022 / Machnaimh agus Moltaí ar an mBille Féiniúlachta agus Teanga (Tuaisceart Éireann) 2022, 2022, 2023, Report, PUBLISHED
Róisín Áine Costello, Brittle Constitutionalism in the European Legal Order: Re-embedding the Social and Economic Aspects of the European Union"s Constitutional Identity, 1, Bologna, Italy, 2022, Book, PUBLISHED
Róisín Áine Costello, World Bank Report on Women, Business and the Law, Irish Centre for European Law, 2022, Report, PUBLISHED
Róisín Áine Costello, Language Use and Language Learning in Northern Ireland: Building Linguistic Capacity for Reconciliation / Úsáid Teanga agus Foghlaim Teanga I dTuaisceart Éireann: Cumas Teanga a Fhorbairt don Athmhuintearas , 2022, 2022, Report, PUBLISHED
Róisín Áine Costello, The Official Languages Act: More than Performative Allegiance in Public Spaces?, The Legal Status of Irish, Trinity College Centre for Constitutional Law & Governance, Dublin, 2021, 2021, Conference Paper, PUBLISHED
Maria Grazia Porcedda, with David Fennelly and Róisín A Costello, Data Protection and the COVID-19 Pandemic, https://www.tcd.ie/law/2020.21, Ireland, Covid-19 Law and Human Rights Observatory, Trinity College Dublin, 2021, Report, PUBLISHED
Róisín Áine Costello, World Bank Report on Women, Business and the Law, Irish Centre for European Law, 2021, Report, PUBLISHED

  


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Award Date
Fellow of International Economic Law (Georgetown Law) 2014-2015
International Student Scholarship (Georgetown Law) 2014-2015
Róisín is primarily an EU lawyer and researches and works on EU law with a particular focus on privacy and data protection law and EU constitutionalism, including the intersectional of constitutional and digital rights. Róisín's work on EU law has been funded by the IRC and ESRC. The second strange of Róisín's research focuses on minority language rights, with a particular focus on regional and minority languages in the Ireland and the European Union. Róisín has received funding from the SLS, SLSA, The Arts and Humanities Research Council,and the Irish Research Council & The Department of Foreign Affairs for research projects related to her research in minority language rights. Róisín is also interested in the intersection of law and the humanities - in particular the portrayal of law and lawyers in Irish literature.