| Official Name: | Whynot, Mississippi |
| Pushpin Map: | Mississippi#USA |
| Pushpin Label: | Whynot |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Mississippi |
| Subdivision Type2: | County |
| Subdivision Name2: | Lauderdale |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 492 |
| Coordinates: | 32.2892°N -88.4903°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 39301 |
| Area Code: | 601 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 713095 |
Whynot is an unincorporated community located in Lauderdale County, Mississippi. Whynot is approximately 16.3miles southeast of Meridian on Mississippi Highway 19 and is part of Meridian, Mississippi Micropolitan Statistical Area.
The area was first served by a post office called Whitesville, which was established June 23, 1852, with Isham K. Pringle as first postmaster. The name was changed to Why Not (two words) on December 30, 1852, and was finally discontinued September 30, 1933, with mail thereafter going to Meridian.[1]