Douglas Porch (born December 29, 1944) is an American military historian and academic.

He currently serves as a Professor of National Security Affairs at the Naval Postgraduate School, and is the former Chair of the Department of National Security Affairs for the Naval Postgraduate School at Monterey, California.

He has been a professor of strategy at the Naval War College, a guest lecturer at the Marine Corps University, a post-doctoral research fellow at the École Normale Supérieure in Paris and the Mark W. Clark Professor of History at The Citadel.

[1] Dr. Porch has written more than eight books and numerous other publications, mostly about French military history and French Colonialism.

In 1993 his book The French Foreign Legion: A Complete History of the Legendary Fighting Force received the Society for Military History's Distinguished Book Award.