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Daniel Immerwahr (born May 21, 1980) is an American historian and author. He is the Bergen Evans Professor in the Humanities at the Weinberg College of Arts & Sciences at Northwestern University.
His first book, Thinking Small, was published in 2015 and won the Merle Curti Award. His second book, How to Hide an Empire (2019), was a national bestseller, one of the New York Times critics' top books of the year, and winner of the Robert H. Ferrell Prize.</onlyinclude>
Immerwahr grew up in Swarthmore, Pennsylvania. He is Jewish and is first cousin twice removed of Clara Immerwahr, the pioneering chemist and first wife of Fritz Haber. He received his undergraduate degree from Columbia University in 2002, before obtaining a second undergraduate degree at King's College, Cambridge in 2004 as a Marshall Scholar. In 2011, Immerwahr received a Ph.D. in history from the University of California, Berkeley. From 2011-2012, he was a postdoctoral research fellow at Columbia University's Committee on Global Thought.
He is a professor of history at Northwestern University. Since 2020, Immerwahr is a contributing writer at The New Yorker. He has also written for n+1, Slate, Jacobin, and Dissent. His work has largely focused on American history.