Harold Rosenbaum (born January 24, 1950) is an American conductor and musician. He is the artistic director and conductor of the New York Virtuoso Singers and the Canticum Novum Singers. The New York Virtuoso Singers appear on 48 albums on labels including Naxos Records and Sony Classical. He has collaborated extensively with many ensembles including the New York Philharmonic, Juilliard Orchestra, American Symphony Orchestra, Bang on a Can, Mark Morris Dance Group, Orchestra of Saint Luke's, Glyndebourne Festival Opera, Riverside Symphony, and Brooklyn Philharmonic.