| Roger H. Mills | |
| Order: | 20th |
| Office: | Secretary of State of Connecticut |
| Term Start: | June 1849 |
| Term End: | June 1850 |
| Predecessor: | John Brownlee Robertson |
| Successor: | Hiram Weed |
| Order1: | 6th |
| Title1: | Mayor of Beloit, Wisconsin |
| Term Start1: | April 1862 |
| Term End1: | April 1863 |
| Successor1: | Beriah C. Rogers |
| State Senate2: | Connecticut |
| District2: | New Hartford |
| Term Start2: | May 1, 1848 |
| Term End2: | May 1, 1849 |
| Birth Date: | 18 April 1813 |
| Birth Place: | New Hartford, Connecticut, U.S. |
| Death Place: | Beloit, Wisconsin, U.S. |
| Restingplace: | Oakwood Cemetery, Beloit |
| Profession: | Lawyer |
Roger Henry Mills (April 18, 1813November 12, 1881) was an American lawyer, politician, and Wisconsin pioneer. He was the 20th Secretary of State of Connecticut and served in the Connecticut House of Representatives and Senate. After moving to Wisconsin, he was elected the 6th mayor of Beloit, Wisconsin.
Born in New Hartford, Connecticut, son of Roger and Harriet Merrill Mills, Roger Henry Mills went to Yale Law School and was admitted to the Connecticut bar. He practiced law in New Hartford, Connecticut. Mills served in the Connecticut House of Representatives in 1839 and 1840. In 1848, Mills served in the Connecticut State Senate and was a Whig. In 1849, he was elected Secretary of State of Connecticut. He was also probate judge. He later became a Republican. In 1853, Mills moved to Beloit, Wisconsin and continued to practice law. Mills served as mayor of Beloit, Wisconsin. Mills died in Beloit, Wisconsin.[1] [2] [3] [4]