Radcliffe College was a women's liberal arts college in Cambridge, Massachusetts, that was founded in 1879. In 1999, it was fully incorporated into Harvard College. The college was named for the early Harvard benefactor Anne Mowlson (née Radcliffe) and was one of the Seven Sisters colleges.

For the first 70 years of its existence, Radcliffe conferred undergraduate and graduate degrees. Beginning in 1963, it awarded joint Harvard-Radcliffe diplomas to undergraduates. In 1977, Radcliffe signed a formal "non-merger merger" agreement with Harvard, and completed a full integration with Harvard in 1999.

Within Harvard University, Radcliffe's former administrative campus, Radcliffe Yard, is home to the Radcliffe Institute for Advanced Study. Former Radcliffe housing at the Radcliffe Quadrangle, including Pforzheimer House, Cabot House, and Currier House, has been incorporated into Harvard College's house system. Under the terms of the 1999 consolidation, Radcliffe Yard and the Radcliffe Quadrangle retain the "Radcliffe" designation in perpetuity.