| Election Name: | 1951 Mississippi Democratic gubernatorial primary runoff |
| Country: | Mississippi |
| Flag Image: | Flag of Mississippi (1894-1996).svg |
| Type: | presidential |
| Previous Election: | 1947 Mississippi gubernatorial election |
| Previous Year: | 1947 |
| Next Election: | 1955 Mississippi gubernatorial election |
| Next Year: | 1955 |
| Ongoing: | no |
| Election Date: | November 6, 1951 |
| Image1: | Hugh L. White.jpg |
| Nominee1: | Hugh L. White |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 201,222 |
| Percentage1: | 51.18% |
| Nominee2: | Paul B. Johnson Jr. |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 191,966 |
| Percentage2: | 48.82% |
| Map Size: | 250px |
| Governor | |
| Before Election: | Fielding L. Wright |
| Before Party: | Democratic Party (United States) |
| After Election: | Hugh L. White |
| After Party: | Democratic Party (United States) |
The 1951 Mississippi gubernatorial election took place on November 6, 1951, in order to elect the Governor of Mississippi. Incumbent Democrat Fielding L. Wright was term-limited, and could not run for reelection to a second full term. As was common at the time, the Democratic candidate ran unopposed in the general election; therefore the Democratic primary was the real contest, and winning the primary was considered tantamount to election.
No candidate received a majority in the Democratic primary, which featured seven contenders, so a runoff was held between the top two candidates. The runoff election was won by former Governor Hugh L. White, who defeated lawyer Paul B. Johnson Jr., son of former Governor Paul B. Johnson Sr.
In the general election, White ran unopposed.