Edward David Gerard Llewellyn is a British diplomat. Since 2022, he has been the UK Ambassador to Italy and non-resident Ambassador to San Marino. Previously, he served as the UK Ambassador to France (2016-2021) and Chief of Staff to the British Prime Minister from 2010 to 2016. He has also worked at the Office of the High Representative in Sarajevo, the European Commission, and as Personal Adviser to the Governor of Hong Kong.