| Official Name: | Sør-Tverrfjord |
| Other Name: | Sør Tverrfjord |
| Settlement Type: | Village |
| Pushpin Map: | Finnmark#Norway |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Northern Norway |
| Subdivision Name2: | Finnmark |
| Subdivision Type3: | District |
| Subdivision Name3: | Vest-Finnmark |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Loppa Municipality |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Postal Code Type: | Post Code |
| Postal Code: | 9584 Sør-Tverrfjord |
| Coordinates: | 70.2196°N 21.7141°W |
| Elevation M: | 7 |
| Elevation Footnotes: | [1] |
Sør-Tverrfjord is a village in Loppa Municipality in Finnmark county, Norway. The village is located on the mainland of Loppa, along the Langfjorden, south of the island of Silda. The village is connected by road to the village of Sandland to the north, and it is connected to the rest of Norway by a ferry from Sør-Tverrfjord to the village of Bergsfjord and then onwards to the village of Øksfjord. The isolated village of Langfjordhamn lies about to the southeast at the end of the fjord, accessible only by boat. The Langfjordjøkelen glacier lies about south of Sør-Tverrfjord.