| Official Name: | Byafossen |
| Settlement Type: | Village |
| Pushpin Map: | Trøndelag#Norway |
| Pushpin Label Position: | top |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Central Norway |
| Subdivision Name2: | Trøndelag |
| Subdivision Type3: | District |
| Subdivision Name3: | Innherred |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Steinkjer Municipality |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Postal Code Type: | Post Code |
| Postal Code: | 7716 Steinkjer |
| Coordinates: | 64.0359°N 11.5506°W |
| Elevation M: | 35 |
| Elevation Footnotes: | [1] |
Byafossen[2] is a village in Steinkjer Municipality in Trøndelag county, Norway. It is located along the river Byaelva, about northeast of the town of Steinkjer and about southwest of the village of Sunnan. The Nordlandsbanen railway line passes through the village, but there is not a station here. The village is named after the local 12.5m (41feet) waterfall on the river. The village is usually considered part of the town of Steinkjer urban area.[3]