Fiona Hill (born October 1965) is a British-American foreign affairs specialist and author. She is a former official at the U.S. National Security Council specializing in Russian and European affairs. She was a witness in the November 2019 House hearings regarding the impeachment inquiry during the first impeachment of Donald Trump. She earned a Ph.D. in history from Harvard University in 1998. She currently serves as a Senior Fellow at the Brookings Institution in Washington. She will take up office as Chancellor of Durham University in England in summer 2023.