Dorota Leczykiewicz
Associate Professor of Law
Biography
Dr Dorota Leczykiewicz is Associate Professor of Law at the University of Oxford and Official Fellow in Law at St Peter’s College.
Dr Leczykiewicz’s research focuses on tort law, comparative law and EU law. In comparative law, her scholarship engages in comparison across civil law and common law traditions, primarily in the field of tort law, using doctrinal, conceptual, and structural analysis. In EU law, her research focuses on the judicial development of EU legal doctrines, with particular attention to the structure and legitimacy of judicial reasoning.
In the Faculty of Law, Dr Leczykiewicz teaches EU law, tort law, and comparative law. At St Peter’s College, she teaches tutorials in Tort law and EU law. She supervises doctoral students conducting research in EU law, comparative law, and private law.
Recent publications
Dorota Leczykiewicz, 'Violation of a Right and Tort Law' in Marco Cappelletti, Ciara Kennefick and Dorota Leczykiewicz (eds), Comparative Reflections in Private Law. Essays in Honour of Simon Whittaker (Oxford University Press 2026)
Dorota Leczykiewicz, 'Reasoning of the Court of Justice of the EU: Challenging the Interpretation Framework' in Alezini Loxa and Luigi Lonardo (eds), The Reasoning of the Court of Justice of the EU: A Normative Assessment (Oxford University Press 2026)
Featured Publications
LECZYKIEWICZ D, ‘The Reasoning of the Court of Justice of the EU: Challenging the Interpretation Framework’ in L Lonardo and A Loxa (eds.), The Reasoning of the Court of Justice of the EU: A Normative Assessment (OUP 2026)
Leczykiewicz D, ‘Violation of a Right and Tort Law’, Comparative Reflections in Private Law (Oxford University Press (OUP) 2026)
Kennefick C, LECZYKIEWICZ D and Cappelletti M (eds.), Comparative Reflections in Private Law: Essays in Honour of Simon Whittaker (Oxford University Press 2026)
Adams-Prassl J and others (eds.), The Internal Market Ideal: Essays in Honour of Stephen Weatherill (OUP 2024)
Leczykiewicz D, ‘Prohibition of abusive practices as a “general principle” of EU law’ (2019) 56(3) Common Market Law Review 703
Leczykiewicz D, ‘Loss and its Compensation in the Proposed New French Regime of Extra-contractual Liability’, French Civil Liability in Comparative Perspective (2019)
Publications
Leczykiewicz D, ‘The Judgment in Bauer and the Effect of the EU Charter of Fundamental Rights in Horizontal Situations’ (2020) 16(2) European Review of Contract Law 323
Leczykiewicz D, ‘Prohibition of abusive practices as a “general principle” of EU law’ (2019) 56(3) Common Market Law Review 703
Leczykiewicz D, ‘Prohibition of abusive practices as a Âgeneral principle of EU law’ (2019) 56(3) Common Market Law Review 703
Leczykiewicz D, ‘Book Review: The Emergence of EU Contract Law Exploring Europeanization , by Lucinda Miller. (Oxford: Oxford University Press, 2011)’ (2013) 50(Issue 1) Common Market Law Review 305
Leczykiewicz D, ‘Horizontal application of the Charter of Fundamental Rights’ (2013) 38(4) European Law Review 479
Leczykiewicz D, ‘Horizontal Application of the Charter of Fundamental Rights’ (2013) 38(4) EUROPEAN LAW REVIEW 479
Leczykiewicz D, ‘The Emergence of EU Contract Law Exploring Europeanization’ (2013) 50(1) COMMON MARKET LAW REVIEW 305
Leczykiewicz D, ‘‘Where Angels Fear to Tread’: The EU Law of Remedies and Codification of European Private Law’ (2012) 8(1) European Review of Contract Law 47
Leczykiewicz D, ‘Private Party Liability in EU Law: In Search of the General Regime’ (2010) 12 Cambridge Yearbook of European Legal Studies 257
Leczykiewicz D, ‘Why do the European Court of Justice judges need legal concepts?’ (2008) 14(6) European Law Journal 773
Leczykiewicz D, ‘Constitutional conflicts and the third pillar’ (2008) 33(2) EUROPEAN LAW REVIEW 230
Leczykiewicz D, ‘Book Review: Constitutional challenges to the European Arrest Warrant , by Elspeth Guild. (Nijmegen, Wolf Legal Publishers, 2006)’ (2007) 44(Issue 3) Common Market Law Review 840
Leczykiewicz D, ‘Trybunal Konstytucyjny (Polish Constitutional Tribunal), Judgment of 27 April 2005, No. P 1/05’ (2006) 43(Issue 4) Common Market Law Review 1181
Leczykiewicz D, ‘Trybunał Konstytucyjny (Polish Constitutional Tribunal), Judgment of 27 April 2005, No. P 1/05, on the Constitutionality of the European Arrest Warrant National Implementation (Case Comment)’ (2006) 43(4) Common Market Law Review
Leczykiewicz D, ‘Common Commercial Policy: the Expanding Competence of the European Union in the Area of International Trade’ (2005) 6(11) 6 German Law Journal 1673-1686 1673
LECZYKIEWICZ D, ‘The Reasoning of the Court of Justice of the EU: Challenging the Interpretation Framework’ in L Lonardo and A Loxa (eds.), The Reasoning of the Court of Justice of the EU: A Normative Assessment (OUP 2026)
Leczykiewicz D, ‘Violation of a Right and Tort Law’, Comparative Reflections in Private Law (Oxford University Press (OUP) 2026)
Adams-Prassl J and others, ‘Introduction: In Pursuit of the (Internal Market) Ideal’, The Internal Market Ideal (Oxford University Press (OUP) 2024)
Leczykiewicz D, ‘Judicial Development of EU Fundamental Rights Law in the Digital Era – A Fresh Look at the Concept of ‘General Principles’’ (2019)
Leczykiewicz D, ‘Loss and its Compensation in the Proposed New French Regime of Extra-contractual Liability’, French Civil Liability in Comparative Perspective (2019)
Leczykiewicz D, ‘The Charter of Fundamental Rights and the EU’s Shallow Constitutionalism’, The Rise and Fall of the European Constitution (Hart Publishing 2018)
Giliker P and Leczykiewicz D, ‘Chapter 3: Compensatory remedies in EU law: the relationship between EU law and national law’, Research Handbook on EU Tort Law (Edward Elgar Publishing 2017)
Leczykiewicz D, ‘Compensatory remedies in EU law: The relationship between EU law and national law’ in P Giliker (ed.), Research Handbook on EU Tort Law (Edward Elgar Publishing 2017)
Brownsword R and others, ‘Chapter 9: Private regulation, compliance and reviewability of contracts’, Contract and Regulation (Edward Elgar Publishing 2017)
LECZYKIEWICZ D, ‘Private Regulation, Compliance and Reviewability of Contracts’, RESEARCH HANDBOOK ON CONTRACT AND REGULATION (Edward Elgar 2017)
Leczykiewicz D, ‘Human rights and the area of freedom, security and justice’, The European Union as an Area of Freedom, Security and Justice (2016)
Leczykiewicz D, ‘Human Rights and the Area of Freedom, Security and Justice: Immigration, Criminal Justice and Judicial Cooperation in Civil Matters’ (2016)
Leczykiewicz D, ‘Regulatory Cost, the Consumer, and the EU Constitutional Framework’ (2016)
Leczykiewicz D, ‘‘Constitutional Justice’ and Judicial Review of EU Legislative Acts’, Europes Justice Deficit? (2015)
Leczykiewicz D, ‘Effectiveness of EU Law Before National Courts: Direct Effect, Effective Judicial Protection, and State Liability’ (2014)
Leczykiewicz D, ‘Conceptualising Conflict between the Economic and the Social in EU Law after Viking and Laval’ in M FREEDLAND and J ADAMS-PRASSL (eds.), Viking, Laval and beyond (Hart Publishing 2014)
Leczykiewicz D, ‘Enforcement or compensation? Damages actions in EU law after the Draft Common Frame of Reference’, The Transformation of European Private Law (Cambridge University Press (CUP) 2013)
Leczykiewicz D, ‘Horizontal Effect of Fundamental Rights: In Search of Social Justice or Private Autonomy in EU Law?’ (2013)
Leczykiewicz D, ‘The Constitutional Dimension of Private Law Liability Rules in the EU’, The Involvement of EU Law in Private Law Relationships (2013)
Leczykiewicz D and Weatherill S, ‘Preface’ (2013)
Leczykiewicz D and Weatherill S, ‘Private Law Relationships and EU Law’, The Involvement of EU Law in Private Law Relationships (2013)
Leczykiewicz D, ‘The Charter of Fundamental Rights and Member States’ Derogations from Internal Market Obligations’ (2011)
Leczykiewicz D, ‘La conformité au principe de protection des droits de l’homme comme condition de la primauté des actes européens dans le troisième pilier’ in A Fr, #261;ckowiak-Adamska and R Grzeszczak (eds.), L’espace judiciaire européen (Willy Brandt Zentrum 2010)
Leczykiewicz D, ‘Wykładnia prounijna w prawie podatkowym a obowiązek poszanowania Konstytucji RP na przykładzie wybranych orzeczeń NSA’ in S Biernat and S Dudzik (eds.), Doświadczenia prawne pierwszych lat członkostwa Polski w Unii Europejskiej (Kluwer International Warsaw 2010)
Leczykiewicz D, ‘Commentary on Article 281 EC (legal personality of the European Community)’ in A Wróbel (ed.), Komentarz. Traktat ustanawiający Wspólnotę Europejską. Volume III (Kluwer International Warsaw 2009)
Leczykiewicz D, ‘Obywatelstwo UE i prawo do swobodnego przemieszczania sie jako instrumenty ograniczania autonomii regulacyjnej panstw członkowskich’ in S Biernat and S Dudzik (eds.), Przepływ osób i świadczenie usług w Unii Europejskiej (Kluwer International Warsaw 2009)
Leczykiewicz D, ‘Common Commercial Policy: The Expanding Competence of the European Union in the Area of International Trade’, The Unity of the European Constitution (Springer Nature 2006)
Kennefick C, LECZYKIEWICZ D and Cappelletti M (eds.), Comparative Reflections in Private Law: Essays in Honour of Simon Whittaker (Oxford University Press 2026)
Adams-Prassl J and others (eds.), The Internal Market Ideal: Essays in Honour of Stephen Weatherill (OUP 2024)
Leczykiewicz D and Weatherill S, The Images of the Consumer in EU Law: Legislation, Free Movement and Competition Law (Hart Publishing Oxford 2016) 1
Leczykiewicz D and Weatherill S, The Images of the Consumer in EU Law (2016) 1
Leczykiewicz D and Weatherill S, The Involvement of EU Law in Private Law Relationships (Hart Publishing Oxford 2013) 1
Leczykiewicz D, ‘Melloni and the future of constitutional conflict in the EU’ (UK Constitutional Law Blog, 22 May 2013, reposted on the EUtopia Law Blog, 23 May 2013, 1 January 2013)
Leczykiewicz D, ‘The ’national identity clause’ in the EU Treaty: a blow to supremacy of Union law?’ (UK Constitutional Law Blog, 21 June 2012, 1 January 2012)
Leczykiewicz D, ‘The EU Charter of Fundamental Rights and its effects’ (UK Constitutional Law Blog, 4 August 2011, 1 January 2011)
Leczykiewicz D, ‘Lucinda Miller, The Emergence of EU Contract Law. Exploring Europeanization’ [2012] 49 Common Market Law Review 305 (review)
Leczykiewicz D, ‘Effective judicial protection of human rights after lisbon: Should national courts be empowered to review EU secondary law?’ (2010) 35(3) European Law Review 326 (review)
Leczykiewicz D, ‘9 Private Party Liability in EU Law: In Search of the General Regime’ (2010) 12 Cambridge Yearbook of European Legal Studies 257 (review)
Leczykiewicz D, ‘Elspeth Guild (ed.), Constitutional Challenges to the European Arrest Warrant’ [2007] 44 Common Market Law Review 840 (review)
Leczykiewicz D, ‘Pleural plaques, the concept of damage and liability for psychiatric injury’ [2008] 124 Law Quarterly Review 548 (case-note)
Leczykiewicz D, ‘Polish Constitutional Tribunal, Judgment of 27 April 2005, No. P 1/05, on the constitutionality of the European Arrest Warrant national implementation’ [2006] 43 Common Market Law Review 1181 (case-note)
Leczykiewicz D, ‘Loss and Its Compensation in the Proposed New French Regime of Extra-contractual Liability’