The 1839 Connecticut gubernatorial election was held on April 2, 1839. Incumbent governor and Whig nominee William W. Ellsworth was re-elected, defeating former senator and Democratic nominee John M. Niles with 51.52% of the vote.
Major party candidates
- William W. Ellsworth, Whig
- John M. Niles, Democratic
Minor party candidates
- Elisha Phelps, Conservative
|Whig||William W. Ellsworth (incumbent)||26,358||51.52%|
|Democratic||John M. Niles||23,728||46.38%|
- "Our Campaigns". Retrieved 2020-09-18.