Joseph Reese Strayer (born August 20, 1904, Baltimore, Maryland, – died July 2, 1987, Princeton, New Jersey, ) was an American medievalist who taught for nearly his entire career at Princeton University and chaired the history department there for 20 years (1942-62). He is regarded as one of the most influential American medieval scholars of the 20th century, particularly in terms of the number of students he trained who went on to define the field of medieval history in the United States for many decades thereafter. His primary scholarly interests lay in the legal and administrative institutions of the kingdom of France under the Capetian monarchs, as well as England under the Norman and Angevin dynasties.