The Radcliffe Choral Society (RCS) is a 60-voice treble choral ensemble at Harvard University. Founded in 1899, it is one of the country's oldest soprano-alto choruses and one of its most prominent collegiate choirs. With the tenor-bass Harvard Glee Club and the mixed-voice Harvard-Radcliffe Collegium Musicum, it is one of the Harvard Choruses. All three groups are led by Harvard Director of Choral Activities Andrew Clark. The RCS Resident Conductor is Elizabeth Eschen. RCS tours domestically every year and travels internationally every four years.

The Harvard Glee Club is a 60-voice, Tenor-Bass choral ensemble at Harvard University. Founded in 1858 in the tradition of English and American glee clubs, it is the oldest collegiate chorus in the United States. The Glee Club is part of the Harvard Choruses of Harvard University, which also include the treble voice Radcliffe Choral Society and the mixed-voice Harvard-Radcliffe Collegium Musicum. All three groups are led by Harvard's current Director of Choral Activities Andrew Gregory Clark.