Dianna Melrose is a former British High Commissioner to Tanzania and Ambassador to Cuba, with wide experience in international development. As Oxfam GB’s first Policy Director, she was instrumental in building Oxfam’s international advocacy work. In 1993 she visited Afghanistan to interview Afghan women displaced by conflict, for an Oxfam fundraising campaign. At the UK’s Department for International Development, she led the International Trade team and developed the Extractive Industries Transparency Initiative, fostering greater transparency in natural resource management. Dianna was head of the UK’s Foreign & Commonwealth Office’s Policy Planning department. She served as a trustee of the global affairs think tank ODI (2016-23) and Save the Children UK (2017-25).