The Mannes School of Music, originally called the David Mannes Music School and later the Mannes Music School, Mannes College of Music, the Chatham Square Music School, and Mannes College: The New School for Music, is a music conservatory in The New School, a private research university in New York City. In the fall of 2015, Mannes moved from its previous location on Manhattan's Upper West Side to join the rest of the New School campus in Arnhold Hall at 55 W. 13th Street.

The New School is a private research university in New York City. It was founded in 1919 as The New School for Social Research with an original mission dedicated to academic freedom and intellectual inquiry and a home for progressive thinkers. Since then, the school has grown to house five divisions within the university. These include the Parsons School of Design, the Eugene Lang College of Liberal Arts, the College of Performing Arts, which includes the Mannes School of Music, The New School for Social Research, and the Schools of Public Engagement.