The United Kingdom’s exit from the European Union has overshadowed the increasingly fraught relationship the country has with the European Court of Human Rights. In recent years this has been heavily influenced by British exceptionalism among key policy makers. British exceptionalism, this paper argues, is opposition to the European Court of Human Rights characterised by the belief that the UK’s domestic constitutional institutions are unique and superior to the European Convention on Human Rights, in part because of their historical provenance and longevity. This has led to non-compliance with Court judgments being considered or arguments for withdrawal from the Convention being justified on the basis that British traditions and institutions are superior. On the international plane this appears as a double standard on the part of the UK and contributes to the undermining of the Court’s authority. This paper looks at the core arguments of British exceptionalism, examining their historical origins within UK constitutional law and politics, before looking at how exceptionalism affects the Convention system across Europe.