Marie Louise "Masha" Yovanovitch (born November 11, 1958) is a Canadian-American former diplomat and retired 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).
https://en.wikipedia.org/wiki/Marie_Yovanovitch