The 1840 Vermont gubernatorial election was held on September 1, 1840. Incumbent Whig Governor Silas H. Jennison defeated Democratic nominee Paul Dillingham with 59.58% of the vote.

Silas Hemenway Jennison was an American Anti-Masonic and Whig politician who served as Vermont's 11th lieutenant governor and 14th governor of Vermont – the first born in the state.