| Benjamin Hardin | |
| Office: | 27th Secretary of State of Kentucky |
| Term Start: | September 4, 1844 |
| Term End: | September 6, 1848 |
| Governor: | William Owsley |
| Predecessor: | James Harlan |
| Successor: | George B. Kinkead |
| State2: | Kentucky |
| District2: | 7th |
| Term Start2: | March 4, 1833 |
| Term End2: | March 3, 1837 |
| Predecessor2: | John Adair |
| Successor2: | John Pope |
| State3: | Kentucky |
| District3: | 10th |
| Term Start3: | March 4, 1815March 4, 1817 March 4, 1819 |
| Term End3: | March 3, 1823 |
| Predecessor3: | William Pope Duval Thomas Speed |
| Successor3: | Thomas Speed Francis Johnson |
| Office4: | Member of the Kentucky House of Representatives |
| Term4: | 1828–1832 |
| Office5: | Member of the Kentucky Senate |
| Term5: | 1810–1811 1824–1825 |
| Birth Date: | 29 February 1784 |
| Birth Place: | Westmoreland County, Pennsylvania, US |
| Death Place: | Bardstown, Kentucky, US |
| Party: | Democratic-Republican National Republican |
| Profession: | Lawyer |
| Signature: | Benjamin Hardin sig.jpg |
| Signature Alt: | Ben Hardin |
Benjamin Hardin (February 29, 1784 – September 24, 1852) was a United States representative from Kentucky. Martin Davis Hardin was his cousin.
Hardin was born at the Georges Creek settlement on the Monongahela River, Westmoreland County, Pennsylvania and then moved with his parents to Washington County, Kentucky in 1788. He attended the schools of Nelson and Washington Counties, Kentucky before studying law. Admitted to the bar in 1806, he commenced practice in Elizabethtown and Bardstown, Nelson County, Kentucky, and then settled in Bardstown, Kentucky in 1808. He owned slaves.
Hardin was a member of the Kentucky House of Representatives in 1810, 1811, 1824, and 1825 and served in the Kentucky Senate 1828–1832. He was elected as a Republican to the Fourteenth Congress (March 4, 1815 – March 3, 1817) and reelected as a Republican to the Sixteenth and Seventeenth Congresses (March 4, 1819 – March 3, 1823). He was elected as an Anti-Jacksonian to the Twenty-third and Twenty-fourth Congresses (March 4, 1833 – March 3, 1837).
After leaving Congress, Hardin served as the Secretary of State of Kentucky 1844–1847. He served as a member of the Kentucky constitutional convention in 1849.
Hardin died in Bardstown, Kentucky in 1852 and was buried in the family burying ground near Springfield, Kentucky.