SummaryThis article argues that states should have a limited obligation — and not only a privilege — to extend diplomatic protection to their nationals when they are facing violations of their most basic human rights abroad. The author addresses the current state of international law regarding diplomatic protection, with a focus on the International Law Commission's failed attempt to impose a duty on states to exercise protection in cases of jus cogens violations. A review of domestic case law, particularly in the United Kingdom, Canada, Germany, and South Africa, shows that while some courts recognize legitimate expectations to receive diplomatic protection, all are reluctant to exercise judicial review of a denial of diplomatic protection. The author nevertheless examines whether adherence to international human rights treaties could entail a positive obligation for states to exercise diplomatic protection in order to protect the human rights of their nationals that are ill-treated abroad.