There are a few notable persons named John Bennett:
- John B. Bennett, U.S. Representative from the state of Michigan
- John O. Bennett, state senator and acting governor of the U.S. state of New Jersey
- John Bennett , author of The Pigtail of Ah Lee Ben Loo with Seventeen other Laughable Tales and 200 Comical Silhouettes, which won the Newbery Honor in 1929
- John Bennett (Australian politician), former member of the Tasmanian state parliament
- John Bennett, British actor (The Fifth Element)
- John Godolphin Bennett, British mathematician, scientist, technologist, industrial research director, and author.