Marie Louise "Masha" Yovanovitch is a Canadian-American diplomat and senior member of the United States Foreign Service. She served in multiple State Department posts, including Senior Advisor to the Under Secretary of State for Political Affairs (2004–2005), U.S. Ambassador to Kyrgyzstan (2005–2008), U.S. Ambassador to Armenia (2008–2011), Principal Deputy Assistant Secretary for the Bureau of European and Eurasian Affairs (2012–2013), and Ambassador to Ukraine (2016–2019). Yovanovitch is a diplomat in residence at the Institute for the Study of Diplomacy at Georgetown University. On January 31, 2020 it was reported that she had retired from the State Department.