The 1866 Michigan gubernatorial election was held on November 6, 1866. Incumbent Republican Henry H. Crapo defeated Democratic nominee Alpheus S. Williams with 58.59% of the vote.
Major party candidates
- Henry H. Crapo, Republican
- Alpheus S. Williams, Democratic
|Republican||Henry H. Crapo (incumbent)||97,112||58.59|
|Democratic||Alpheus S. Williams||68,650||41.42|
- ^ "Our Campaigns - MI Governor - Nov 06, 1866". Our Campaigns. Retrieved November 26, 2019.