Neil Warner wurde im Jahr 1929 in Manhattan, New York City, New York, USA geboren. Er war Komponist, bekannt für Gnomes (1980). Er starb am 30 August 2016 in Manhattan, New York City, New York, USA.
He conducted the orchestra for both the out-of-town and the original Broadway production of "Man of La Mancha". He also wrote the dance arrangements for the show.