The Memorial Quadrangle is a residential quadrangle at Yale University in New Haven, Connecticut. Commissioned in 1917 to supply much-needed student housing for Yale College, it was Yale's first Collegiate Gothic building and its first project by James Gamble Rogers, who later designed ten other major buildings for the university. The Quadrangle has been occupied by Saybrook College and Branford College, two of the original ten residential colleges at Yale. The collegiate system of Yale University was largely inspired by the Oxbridge model of residential and teaching colleges at the University of Oxford and the University of Cambridge in the UK.

In architecture, a quadrangle is a space or a courtyard, usually rectangular in plan, the sides of which are entirely or mainly occupied by parts of a large building. The word is probably most closely associated with college or university campus architecture, but quadrangles are also found in other buildings such as palaces. Most quadrangles are open-air, though a few have been roofed over, to provide additional space for social meeting areas or coffee shops for students.