| Official Name: | South Acworth, New Hampshire |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | New Hampshire#USA |
| Pushpin Label: | South Acworth |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New Hampshire |
| Subdivision Type2: | County |
| Subdivision Name2: | Sullivan |
| Subdivision Type3: | Town |
| Subdivision Name3: | Acworth |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 830 |
| Coordinates: | 43.1908°N -72.2853°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 03607 |
| Area Code: | 603 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 870014 |
South Acworth is an unincorporated community in the town of Acworth in Sullivan County, New Hampshire, United States. It is located around a dam on the Cold River, 2miles south of and downhill from the Acworth town center. New Hampshire Route 123A passes through the village, heading east to New Hampshire Route 10 in the town of Marlow and west to Alstead.
South Acworth has a separate ZIP code (03607) from the rest of Acworth.