| Lynn Grove | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA Kentucky#USA |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location within the state of Kentucky |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kentucky |
| Subdivision Type2: | County |
| Subdivision Name2: | Calloway |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CST |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 574 |
| Coordinates: | 36.5892°N -88.4381°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 42062 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 497381 |
Lynn Grove is an unincorporated community in Calloway County, Kentucky, United States.
Lilburn Linn establish a post office on the site in 1873 known as Linn Grove, Kentucky, but it closed in 1874. In 1886 another post office was opened by Leon Blythe and it was known as Leonville, Kentucky. On April 6, 1892, the name was changed to Lynn Grove. It is thought a clerical error at the U.S. Post Office is why the spelling is different from the original name.[1]