James Loeffler is an American historian. He holds the Felix Posen Professorship in Modern Jewish History at Johns Hopkins University and is co-editor of AJS Review.[1] Loeffler is a Fellow of the Institute for Advanced Israel Studies at Brandeis University.[2] His book, Rooted Cosmopolitans: Jews and Human Rights in the Twentieth Century, was recipient of the 2019 Dorothy Rosenberg Prize from the American Historical Association[3] and the Jordan Schnitzer Prize from the Association for Jewish Studies.