Updated Jun 10, 2026

What treaties has United Kingdom signed or ratified?

Name: United Kingdom — UN treaty signatures and ratifications
Creator: United Nations Treaty Collection

United Kingdom's UN multilateral treaty positions — signature vs. ratification status — and its inter-governmental organization memberships.

International Organizations

United Nations (1945)NATO (1949)G7G20AUKUS (2021)Five EyesCommonwealth of Nations