Jemma McKenzie-Brown
- Birthday: 1994-06-02
- Place of birth: Beverley, Yorkshire, England, UK
Jemma McKenzie-Brown (born 2 June 1994) is an English actress and singer. She is known for her role as Tiara Gold in the 2008 film High School Musical 3: Senior Year, and as lead singer of the band About Bunny.
