Michael G. Kozak (born September 18, 1946) is an American diplomat in the United States Department of State who served as Acting Assistant Secretary for Western Hemisphere Affairs from 2019 to 2021. He previously served as U.S. Ambassador to Belarus between 2000 and 2003 and chief of mission at the United States Interests Section in Havana between 1996 and 1999, and was a nominee to be U.S. Ambassador to El Salvador in 1991. He achieved a measure of prominence in the 1980s for his attempts to negotiate with Panamanian leader Manuel Noriega to leave power.