| John Gilmore | |
| State1: | Pennsylvania |
| District1: | 16th |
| Term Start1: | March 4, 1829 |
| Term End1: | March 3, 1833 |
| Preceded1: | See below |
| Succeeded1: | Joseph Biles Anthony |
| Office2: | Member of the Pennsylvania House of Representatives |
| Term2: | 1816-1821 |
| Office3: | 15th Treasurer of Pennsylvania |
| Term Start3: | 1841 |
| Term End3: | 1842 |
| Birth Date: | 18 February 1780 |
| Birth Place: | Somerset County, Pennsylvania |
| Death Place: | Butler, Pennsylvania |
| Party: | Jacksonian |
John Gilmore (February 18, 1780 – May 11, 1845) was a Jacksonian member of the U.S. House of Representatives from Pennsylvania.
John Gilmore (father of Alfred Gilmore) born in Somerset County, Pennsylvania. He moved with his parents to Washington, Pennsylvania, in 1780. He studied law, was admitted to the bar in 1801 and commenced practice in Washington. He moved to Butler, Pennsylvania, in 1803. He was appointed deputy district attorney for Butler County, Pennsylvania, in 1803. He was a member of the Pennsylvania House of Representatives from 1816 to 1821 and served as speaker in 1821.
Gilmore was elected as a Jacksonian to the Twenty-first and Twenty-second Congresses. He was elected State treasurer by the legislature of Pennsylvania in 1841. He died in Butler in 1845. Interment in North Cemetery.