| John O'Connell | |
| Office: | 3rd Mayor of Marlborough |
| Term Start: | 1893 |
| Term End: | 1893 |
| Predecessor: | George A. Howe |
| Successor: | William N. Davenport |
| Office2: | Member of the Board of Selectmen of the Town of Marlborough |
| Birth Date: | June 24, 1826 |
| Birth Place: | Middleton, Ireland |
| Death Date: | August 20, 1909 |
| Party: | Republican |
| Profession: | Shoe manufacturer |
John O'Connell (June 24, 1826 - August 20, 1909) was an American shoe manufacture, and political figure who was a member of the Board of Selectmen and the third Mayor of Marlborough, Massachusetts.
O'Connell was born on June 24, 1826, in Middleton, Ireland.
In 1893, O'Connell succeeded George A. Howe as the third Mayor of Marlborough, Massachusetts.
O'Connell died on August 20, 1909.