Ohio State nav bar

Peter Hahn

Peter Hahn

Peter Hahn

Professor of History; Divisional Dean, Arts and Humanities



186 University Hall
230 N. Oval Mall
Columbus, OH 43210

Google Map


  • Ph.D., Vanderbilt University, History (1987)
  • M.A., Vanderbilt University, History (1984)
  • B.A., Ohio Wesleyan University, History (1982)


An accomplished research scholar, Professor Hahn has published seven books on the history of American diplomacy in the Middle East, most recently Missions Accomplished? The United States and Iraq since World War I and Historical Dictionary of U.S.-Middle East Relations, as well as scores of articles, essays, and reviews.  Professor Hahn has conducted research in the archives of the United States, Israel, Britain, and France; delivered scholarly papers and invited lectures in eleven countries; consulted with policymakers in the U.S. Departments of State, Defense, and Justice and with senior officers of the Ohio National Guard; and given interviews to the media on five continents. 

Professor Hahn previously served as dean of Arts and Humanities in 2015-21 and as chair of the History Department in 2006-15.  In 2002-15, he served as executive director of the Society for Historians of American Foreign Relations (SHAFR), a professional society of some 1,400 members residing in 44 countries.  He was elected by the membership to be president of SHAFR in 2018.  In 2010, Ohio Governor Ted Strickland appointed Professor Hahn to a five-year term on the State of Ohio’s War of 1812 Bicentennial Commission.

Professor Hahn has advised or co-advised more than three dozen doctoral dissertations in U.S. foreign relations history. He has taught thousands of undergraduates in courses on the history of U.S. foreign relations and modern U.S. history. He helped to launch an undergraduate study abroad program on World War II and its impact on the modern world.

Professor Hahn earned his B.A. summa cum laude from Ohio Wesleyan University, and his M.A. and Ph.D. from Vanderbilt University, where he defended his dissertation with distinction.  He won the 1998 Stuart L. Bernath Lecture Prize (for excellence in teaching and scholarship), and in 1995 he held a Fulbright Senior Research Fellowship in Jerusalem.

Faculty Links

Curriculum Vitae (pdf)
Department web page

Media Links

Ohio State Insights: What caused 9/11 — and the consequences that linger (2019)
Origins: The Long Shadow of the June 1967 War (2017)
Mershon Center: Hahn wins distinguished service award (2017)
History Department: Hahn Recognized with Distinguished Service Award (2017)
Mershon Center: Hahn named divisional dean of Arts and Humanities (2015)
Arts and Sciences: Remembering D-Day: A 70th Anniversary Commemoration (2014)
Arts and Sciences: Don't Give Up the Ship! (2014)
Arts and Sciences: Boots on the Ground in Europe: Ohio State Students Head-out to Explore the War that Changed the World (2013)
Mershon Center: Ohio State students walk in footsteps of World War II veterans in Pacific (2012)
WOSU video: World War II Pacific Tour (2012)
Arts and Sciences: History's European WWII Tour for Alumni & Friends Showcases New Undergraduate Program (2012)
Arts and Sciences: Students Take WWII Pacific Trip to Office of the President (2012)
Arts and Sciences: On the sands of Iwo Jima: Hahn and Mansoor lead South Pacific tour (2012)
Arts and Sciences ASCent: On hallowed ground (2012)
Origins: A century of U.S. relations with Iraq (2012)

Mershon Projects

Passport: Newsletter of the Society for Historians of American Foreign Relations, with Mitchell Lerner (2003-15)
The United States and Public Diplomacy: Toward an International History, with Robert McMahon (2006-07)