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Welcome to Oxford Public International Law

Oxford Public International Law (OPIL) is a comprehensive, single location providing integrated access across our international law services, bringing you one step closer to the perfect research solution.

Our ground-breaking online resources work to speed up research and provide easy access to authoritative content, essential for anyone working in international law.

Introducing the new General Editor of MPEPIL

Professor Anne Peters, the director at the Max Planck Institute for Comparative Public Law and International Law, takes over as the General editor of the Max Planck Encyclopedia of Public International Law from Professor Rüdiger Wolfrum.




Site News

October 26, 2021

New OHT Editorial

The Formation of the United Kingdom of the Netherlands (1814–1815) by Randall Lesaffer

October 4, 2021

New Titles

2 new titles have been added to OSAIL.

September 23, 2021

New Title

1 new title has been added to OSAIL.

September 8, 2021


Eighteen updated articles and one new article are now available on the Max Planck Encyclopedia of Public International Law.