| John Howard Allen | |
| Office: | 2nd Mayor of Orlando |
| Term Start: | 1877 |
| Term End: | 1878 |
| Predecessor: | William Jackson Brack |
| Successor: | Charles Henry Munger |
| Birth Date: | c. 1845 |
| Birth Place: | Kentucky, US |
| Death Date: | January 6, 1942 |
| Death Place: | Seattle, US |
| Party: | Democrat |
| Spouse: | Sarah E. "Sallie" Bell |
John Howard Allen was an American politician who served as the second mayor of Orlando, Florida, from 1877 to 1878.[1]