David Richmond Gergen (May 9, 1942 - July 10, 2025) was an American political commentator and former presidential adviser who served during the administrations of Richard Nixon, Gerald Ford, Ronald Reagan, and Bill Clinton. He was a senior political analyst for CNN and a professor of public service and the founding director of the Center for Public Leadership at the Harvard Kennedy School. Gergen is also the former editor at large of U.S. News & World Report and a contributor to CNN.com and Parade Magazine. He has twice been a member of election coverage teams that won Peabody awards—in 1988 with MacNeil–Lehrer, and in 2008 with CNN.

Gergen joined the Nixon White House in 1971, as a staff assistant on the speech-writing team, becoming director of speechwriting two years later. He served as director of communications for both Ford and Reagan. He also became a senior adviser to the Democrat Bill Clinton and Secretary of State Warren Christopher. He graduated with honors from Yale and Harvard Law School, and has been awarded 27 honorary degrees.