Robert Sidney Gelbard (born March 6, 1944 in New York City) is a diplomat and former United States Ambassador to Bolivia (1988–91) and Indonesia (1999–2001). He is a member of the American Academy of Diplomacy, and is a 1964 graduate of Colby College and a 1979 graduate of the Harvard Kennedy School, where he received a Master of Public Administration. In February of that year, Gelbard described the Kosovo Liberation Army, Milosevic's foe in the Kosovo war as "without any questions, a terrorist group" and added that "we condemn very strongly terrorist activities in Kosovo."