Ronald Alan Klain (born August 8, 1961) is an American attorney, political consultant, and former lobbyist who served as White House Chief of Staff under President Joe Biden from 2021 to 2023.
A Democrat, Klain previously served as chief of staff to two vice presidents: Al Gore from 1995 to 1999 and Biden from 2009 to 2011. He was also appointed by President Barack Obama as White House Ebola Response Coordinator after the appearance of Ebola virus cases in the United States, serving from 2014 to 2015.