Harvard Yard, in Cambridge, Massachusetts, is the oldest part of the Harvard University campus, its historic center and modern crossroads. It contains most of the freshman dormitories, Harvard's most important libraries, Memorial Church, several classroom and departmental buildings, and the offices of senior University officials including the President of Harvard University.

The Yard grew over the centuries around Harvard College's first parcel of land, purchased in 1637. Today it is a grassy area of 22.4 acres (9.1 ha) bounded principally by Massachusetts Avenue, Cambridge Street, Broadway, and Quincy Street. Its perimeter fencing – principally iron, with some stretches of brick – has twenty-seven gates.