| John Guerrant Miller | |
| Office1: | 13th Mayor of Columbus |
| Term Start1: | 1840 |
| Term End1: | May 4, 1841 |
| Predecessor1: | Philo H. Olmsted |
| Successor1: | Thomas Wood |
| Party: | Whig |
| Profession: | Mayor Newspaper operator Attorney Postmaster Judge Gas Company Director Justice of the Peace |
| Birth Date: | 1795 |
| Birth Place: | Goochland County, Virginia |
| Death Date: | 1871 |
| Residence: | Goochland County, Virginia Columbus, Ohio |
| Spouse: | Christian Tyler Otis Crosby |
| Children: | John G. |
| Alma Mater: | College of William & Mary |
John Guerrant Miller (1795–1871) was the 13th mayor of Columbus, Ohio. He was also the 12th person to serve in that office. He resigned his office as mayor on May 4, 1841, to become postmaster in Columbus. He served Columbus as mayor for 13 months. His successor after 1841 was Thomas Wood.