| Election Name: | 1846 Louisiana gubernatorial election |
| Country: | Louisiana |
| Type: | presidential |
| Ongoing: | No |
| Previous Election: | 1842 Louisiana gubernatorial election |
| Previous Year: | 1842 |
| Next Election: | 1849 Louisiana gubernatorial election |
| Next Year: | 1849 |
| Election Date: | January 5, 1846 |
| Flag Image: | Flag of the United States (1846–1847).svgborder |
| Nominee1: | Isaac Johnson |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 12,629 |
| Percentage1: | 54.05% |
| Nominee2: | Guillaume DeBuys |
| Party2: | Whig Party (United States) |
| Popular Vote2: | 10,138 |
| Percentage2: | 43.39% |
| Map Size: | 250px |
| Governor | |
| Before Election: | Alexandre Mouton |
| Before Party: | Democratic Party (United States) |
| After Election: | Isaac Johnson |
| After Party: | Democratic Party (United States) |
The 1846 Louisiana gubernatorial election was the first of two elections to take place under the Louisiana Constitution of 1845. The new constitution abolished the provision in the 1812 constitution that required a gubernatorial candidate to win a vote of the legislature to get elected, leaving the final decision up to the people. The new constitution also cut incumbent Governor Alexandre Mouton's term short by one year thus moving the election from July 1846 to January 1846 with the inauguration of the new governor in February.
Popular Vote[1]
| Party | Candidate | Votes received | Percentage |
|---|---|---|---|
| Democratic | Isaac Johnson | 12,629 | 54.05% |
| Whig | Guillaume DeBuys | 10,138 | 43.39% |
| Native American | Charles Derbigny | 598 | 2.56% |
| Total Vote | 23,365 | ||