Aziz Mekouar (born 13 November 1950, Fes) is a Moroccan diplomat who has been serving as Ambassador to China (2018–present), the United States of America (2002-2011, making him the longest serving Moroccan Ambassador in Washington), Italy and the Order of Malta (1999-2002), Portugal (1993-1999), and Angola (1985-1993). He was appointed in 2016 by the King of Morocco on the Steering Committee as Ambassador to Multilateral Negotiations of COP22. He is the longest serving Moroccan Ambassador, and the only one to have been appointed to six different mandates.