| Official Name: | Afton Township, South Dakota |
| Settlement Type: | Township |
| Pushpin Map: | South Dakota#USA |
| Pushpin Label: | Afton Township |
| Pushpin Map Caption: | Location within South Dakota##Location within the United States |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | South Dakota |
| Subdivision Type2: | County |
| Subdivision Name2: | Sanborn |
| Area Total Km2: | 89.3 |
| Area Land Km2: | 89.3 |
| Area Water Km2: | 0.0 |
| Area Total Sq Mi: | 34.5 |
| Area Land Sq Mi: | 34.5 |
| Area Water Sq Mi: | 0.0 |
| Population As Of: | 2000 |
| Population Total: | 52 |
| Population Density Km2: | 0.6 |
| Population Density Sq Mi: | 1.5 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation M: | 406 |
| Elevation Ft: | 1332 |
| Coordinates: | 44.16°N -97.9203°W |
| Area Code: | 605 |
| Blank Name: | FIPS code |
| Blank Info: | 46-00420[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1267672[2] |
Afton Township is a township in Sanborn County, South Dakota, United States.