Nathan Stoltzfus is an American historian and Rintels Professor of Holocaust Studies in the history department at Florida State University. He is noted for his work on protest during the Nazi era, particularly the Rosenstrasse Protest that has sparked debate and discussion about the possibility and impact of protest in Nazi Germany. He was educated at Goshen College (B.A. 1978) and Harvard University (PhD, 1993), and has authored or edited five books.
One of his books, Resistance of the Heart: Intermarriage and the Rosenstrasse Protest in Nazi Germany was co-recipient of the Fraenkel Prize in Contemporary History (1993). German and French translations carried a foreword by German Foreign Minister Joschka Fischer. Fischer wrote in his forward that "The women of the Rosenstrasse will, thanks to Nathan Stoltzfus, take their well-deserved place in the so contradictory history of the German resistance against the brown barbarism." American historian Walter Laqueur wrote in the forward that "Stoltzfus is the first to investigate the events leading to the protest systematically and in depth, not only on the basis of archival material but, more importantly perhaps, on the basis of interviews with surviving participants and eyewitnesses. . . . and it is to Dr. Stoltzfus's great credit that he has saved from oblivion some of these unsung heroes. For heroes they were. . . . Their memory, not least owing to Dr. Stoltzfus's study, will live on. . . .Fascinating and moving  In Britain it was a New Statesman "Book of the Year". Additionally, it was #2 on the German Bestenliste for nonfiction (October, 1999) and a Main Selection (March–April, 2004) of the Swedish Book Club Clio.Die Zeit called it the "standard work" on the protest, which was the center of a little Historikerstreit. As Die Zeit reported on February 27, 2013: After the war the protest action in the Rosenstrasse was a long almost forgotten episode of Nazi history. When U.S. historian Nathan Stoltzfus wrote in 1989 about the demonstration he unleashed an "ongoing controversy." 
He has contributed to other books including Social Outsiders in Nazi Germany (Princeton University Press, 2001), co-edited with Robert Gellately; Shades of Green: Environmental Activism around the Globe (Rowman & Littlefield, 2006), co-edited with Doug Weiner and Christof Mauch, Courageous Resistance: The Power of Ordinary People (Palgrave MacMillan, 2007), co-authored with five professors of history, political science, and sociology; Nazi Crimes and the Law (Cambridge University Press, 2008), co-edited with Henry Friedlander.
- "Helden ohne Namen". Einestages/Der Spiegel. Retrieved 2009-12-31.
- "Rosenstraße - h-german discussion forum". July 2004. Retrieved 2009-12-31.
- "Nathan Stoltzfus at Florida State University". Retrieved 2009-12-31.
- Geyer, Michael (1998). "Resistance of the Heart: Intermarriage and the Rosenstrasse Protest in Nazi Germany". Journal of Church and State – via Questia (subscription required). Retrieved 10 July 2013.
- Stoltzfus, Nathan (1996). Resistance of the heart: intermarriage and the Rosenstrasse protest in Nazi Germany. New York: W.W. Norton. ISBN 978-0-8135-2909-7.
- Joschka Fischer, translation into English by Christine Schurtman. "Foreword to "Resistance of the Heart"". Retrieved 2009-12-31.
- Gellately, Robert; Stoltzfus, Nathan (2001). Social outsiders in Nazi Germany. Princeton, N.J.: Princeton University Press. ISBN 978-0-691-08684-2.
- Mauch, Christof; Stoltzfus, Nathan; Weiner, Douglas R. (2006). Shades of green: environmental activism around the globe. Lanham, Md.: Rowman & Littlefield. ISBN 978-0-7425-4648-6.
- E. Thalhammer, Kristina; L. O'Loughlin, Paula; Glazer, Myron; Glazer, Penina Migdal; McFarland, Sam; Stoltzfus, Nathan; Toffey Shepela, Sharon. Courageous Resistance: The Power of Ordinary People. Palgrave Macmillan. ISBN 978-1-4039-8498-2.
- Stoltzfus, Nathan; Friedlander, Henry (2008). Nazi crimes and the law. Washington, D.C.: German Historical Institute. ISBN 978-0-521-89974-1.