| Official Name: | Nefasit |
| Native Name: | نفاسيت |
| Settlement Type: | Town |
| Pushpin Map: | Eritrea |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 250 |
| Pushpin Map Caption: | Location in Eritrea |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name: | Eritrea |
| Subdivision Name1: | Northern Red Sea |
| Subdivision Type2: | District |
| Subdivision Name2: | Ghinda |
| Population As Of: | 2005 |
| Population Total: | 8727 |
| Coordinates: | 15.3333°N 39.0619°W |
| Elevation Ft: | 5500 |
| Blank Name: | Climate |
Nefasit (Arabic: نفاسيت, in Tigrinya pronounced as /nɐfasit/), also known as Tappa Nefasit, is a small town in the Northern Red Sea Region of Eritrea. Monastery of Debre Bizen is located at the mountains above.
According to multiple tour groups the stretch between the capital Asmara and Nefasit is the most beautiful in Eritrea. There's a colonial era Italian railway that occasionally runs from Asmara.