1864 Connecticut gubernatorial election

{{Short description|none}}

{{Use American English|date=January 2025}}

{{Use mdy dates|date=September 2023}}

{{Infobox election

| election_name = 1864 Connecticut gubernatorial election

| country = Connecticut

| type = Presidential

| ongoing = no

| previous_election = 1863 Connecticut gubernatorial election

| previous_year = 1863

| next_election = 1865 Connecticut gubernatorial election

| next_year = 1865

| election_date = April 4, 1864

| image1 = William Alfred Buckingham - Brady-Handy (3x4a).jpg

| nominee1 = William Alfred Buckingham

| party1 = National Union Party (United States)

| popular_vote1 = 39,820

| percentage1 = 53.65%

| image2 = OrigenSeymour.jpg

| nominee2 = Origen S. Seymour

| party2 = Democratic Party (United States)

| popular_vote2 = 34,162

| percentage2 = 46.02%

| map_image = 220px

| map_size = 220px

| map_caption = County results
Buckingham: {{legend0|#E27F7F|50–60%}} {{legend0|#D75D5D|60–70%}}

| title = Governor

| before_election = William Alfred Buckingham

| before_party = Republican Party (United States)

| after_election = William Alfred Buckingham

| after_party = National Union Party (United States)

}}

{{Elections in Connecticut}}

The 1864 Connecticut gubernatorial election was held on April 4, 1864, and the first of two gubernatorial elections in which the Republicans adopted the National Union Party name, as the national party had done during the 1864 presidential election. Incumbent governor and National Union nominee William Alfred Buckingham defeated Democratic nominee Origen S. Seymour with 53.65% of the vote.