| Birth Date: | 1826 |
| Office: | 4th Attorney General of California |
| Termend: | 1856 |
| Termstart: | 1854 |
| Predecessor: | S. Clinton Hastings |
| Successor: | William M. Stewart |
| Birth Place: | Kentucky, U.S. |
| Death Place: | Denver, Colorado, U.S. |
John R. McConnell (1826 - August 19, 1879)[1] was the fourth attorney general of California from 1854 to 1856. He ran in 1861 for Governor of California under the Southern Democratic party, but he lost to Leland Stanford.
McConnell was born in Kentucky. He died in Denver, Colorado.