Bret Peter Tarrant McKenzie (born 29 June, 1976 in Wellington, New Zealand) is a musician, actor, producer, writer and comedian, best known for being half of the musical comedy duo Flight of the Conchords with Jemaine Clement.

McKenzie is a former member of The Black Seeds. He has released an album called Prototype as Video Kid and is a member of the Wellington International Ukulele Orchestra. McKenzie attended Clifton Terrace Model School (model in the sense of a standard school for training teachers; not a school for models)