| Official Name: | Fort Necessity, Louisiana |
| Pushpin Map: | Louisiana#USA |
| Pushpin Label: | Fort Necessity |
| Pushpin Label Position: | top |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Louisiana |
| Subdivision Type2: | Parish |
| Subdivision Name2: | Franklin |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 69 |
| Coordinates: | 32.0481°N -91.8178°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 71243 |
| Area Code: | 318 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 535049 |
Fort Necessity is an unincorporated community in Franklin Parish, Louisiana, United States. Its ZIP code is 71243.[1]
The Franklin Parish School Board operates Fort Necessity School, a K-8 school.[2] The sole high school in the parish is Franklin Parish High School, which formed in 2005 with the consolidations of Crowville and Winnsboro high schools.[3]