| Trollfonneggi | |
| Other Name: | Trollfonnegge |
| Map: | Innlandet#Norway |
| Map Alt: | Map of the location |
| Label Position: | bottom |
| Coordinates: | 61.2561°N 8.6052°W[1] |
| Location: | Innlandet, Norway |
| Elevation M: | 1662 |
| Prominence M: | 45 |
| Isolation Km: | 1.8 |
| Elevation Ref: | [2] |
| Range: | Filefjell |
| Parent Peak: | Skræmetindane |
Trollfonneggi or Trollfonnegge is a mountain in Vang Municipality in Innlandet county, Norway. The 1662m (5,453feet) tall mountain is located in the Filefjell mountain area, about north of the village of Vang i Valdres. The mountain is surrounded by several other notable mountains including Vennisfjellet and Mjellknapp to the south and Skræmetindene to the southeast.