| Official Name: | Grellton, Wisconsin |
| Pushpin Map: | Wisconsin#USA |
| Pushpin Label: | Grellton |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Jefferson |
| Subdivision Type3: | Town |
| Subdivision Name3: | Milford |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 846 |
| Coordinates: | 43.135°N -88.7883°W |
| Area Code: | 920 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1577622 |
Grellton is an unincorporated community located in the town of Milford, Jefferson County, Wisconsin, United States. The community was named for John F. Grell, an area butter and egg salesman.[1]