| Oliver Warner | |
| Term Start: | 1858 |
| Term End: | 1876 |
| Term Start2: | 1856 |
| Term End2: | 1857 |
| Term Start3: | 1854 |
| Term End3: | 1855 |
| Birth Date: | April 17, 1818 |
| Profession: | Congregational clergyman, librarian |
| Spouse: | Jane S. Daniels Miss. Harriet M. Newhall m. October 2, 1882. |
Oliver Warner (April 17, 1818 – September 14, 1885) was a Massachusetts clergyman, politician, and librarian who served in both houses of the Massachusetts legislature and, from 1858 to 1876, served as the 14th Secretary of the Commonwealth.
Warner was one of nine children born to Rhoda (Bridgman) and Oliver Warner on 17 Apr 1818 in Northampton, Massachusetts.
Warner graduated Phi Beta Kappa from Williams College in 1842. After his gradation from Williams, Warner attended Gilmanton Theological Seminary.
On May 29, 1844, Warner married Jane S. Daniels.
From 1844 to 1846, Warner officiated as a Congregational clergyman in Chesterfield, Massachusetts. In 1852 and 1853, Warner was a tutor at the Williston Seminary in Easthampton, Massachusetts.
Oliver served in the Massachusetts House of Representatives from 1854 and 1855 and in the Massachusetts Senate from 1856 to 1857.
Warner served as the Massachusetts Secretary of the Commonwealth for 18 years to 1876.
In the 1872 election, Warner's majority was greater than any other Republican statewide office candidate.
In 1875, Warner ran for re-election, but he lost the Republican nomination for Massachusetts Secretary of the Commonwealth.
From 1876 to 1879, Warner was the librarian of the Massachusetts State Library.
On October 2, 1882, Warner married Miss. Harriet M. Newhall of Lynn, Massachusetts.
Warner died in Lynn, Massachusetts, on September 14, 1885.