Bennett \b(e)-nne-tt\ as a boy's name is pronounced BEN-et. It is of French and Latin origin. The normal medieval vernacular form of Benedict, used by both women and men in the past. Nowdays, used mostly as a transferred use of the surname from the medieval given name. Humorist Bennett Cerf; choreographer Michael Bennett; author William Bennett; aviation pioneer Floyd Bennett.
For more information, see also the related name Ben.