| John R. Baltzell | |
| Office: | 17th Mayor of Madison, Wisconsin |
| Term Start: | 1879 |
| Term End: | 1880 |
| Predecessor: | George Baldwin Smith |
| Successor: | Philip L. Spooner Jr. |
| Birth Date: | 2 July 1827 |
| Nationality: | American |
| Occupation: | Politician |
John R. Baltzell (July 2, 1827 – July 18, 1893) was an American politician who served as the 17th mayor of Madison, Wisconsin, from 1879 to 1880.[1]