| Election Name: | 1849 Louisiana gubernatorial election |
| Country: | Louisiana |
| Type: | presidential |
| Ongoing: | No |
| Previous Election: | 1846 Louisiana gubernatorial election |
| Previous Year: | 1846 |
| Next Election: | 1852 Louisiana gubernatorial election |
| Next Year: | 1852 |
| Election Date: | November 5, 1849 |
| Flag Image: | Flag of the United States (1848–1851).svgborder |
| Nominee1: | Joseph Marshall Walker |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 14,485 |
| Percentage1: | 51.20% |
| Nominee2: | Alexandre DeClouet |
| Party2: | Whig Party (United States) |
| Popular Vote2: | 13,807 |
| Percentage2: | 48.80% |
| Governor | |
| Before Election: | Isaac Johnson |
| Before Party: | Democratic Party (United States) |
| After Election: | Joseph Marshall Walker |
| After Party: | Democratic Party (United States) |
The 1849 Louisiana gubernatorial election was the last 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 | Joseph Marshall Walker | 14,485 | 51.20% |
| Whig | Alexandre DeClouet | 13,807 | 48.80% |
| Total Vote | 28,292 | ||