Daniel H. Yergin (born February 6, 1947) is an American author, speaker, and economic researcher. Yergin is the co-founder and chairman of Cambridge Energy Research Associates, an energy research consultancy. It was acquired by IHS Energy in 2004.

Born in Los Angeles, California to a Chicago Tribune reporter father and a mother who was a sculptor and painter, Yergin attended Beverly Hills High School. He received his B.A. from Yale University in 1968, where he served on the board of the Yale Daily News, and was a founder of The New Journal. He earned his Ph.D. in International Relations (1974) from Cambridge University where he was a Marshall Scholar. He also holds an honorary doctoral degree (1994) from the University of Houston.

Yergin's first major book, Shattered Peace, was a moderately 'revisionist' account of the origins of the Cold War that attributed it chiefly to "tragic misconceptions" on the part of American policymakers who, in the post-World War II years, embraced the "Riga axioms" of George F. Kennan, Loy W. Henderson, Charles E. Bohlen, and Elbridge Durbow rather than the "Yalta axioms" of President Franklin Delano Roosevelt. Shattered Peace was based on Yergin's Ph.D. dissertation.