- Source: John William Dennis
- Ron Dennis
- Eugene Dennis
- Abroad with Two Yanks
- John F. Kennedy
- John Cena
- Keluarga Rockefeller
- Peter Dennis Mitchell
- Brad Pitt
- Mechanic: Resurrection
- Saving Private Ryan
- John William Dennis
- John Dennis
- Dennis Quaid
- Dennis W. Sciama
- Dennis Hastert
- USS O'Brien (DD-975)
- Dennis Weaver
- Dennis Kucinich
- USS O'Brien (DD-415)
- USS O'Brien (DD-725)
John William Dennis (16 May 1865 – 4 August 1949) was a British politician. He was Mayor of Westminster in 1907–08, when he was described as Liberal Unionist. He was a Conservative Party Member of Parliament (MP) from 1918 to 1922 for the newly created constituency of Birmingham Deritend.
He was elected in the 1918 general election but only served for a single term being replaced by fellow Conservative Smedley Crooke at 1922 General Election.