| Official Name: | Tønjum |
| Settlement Type: | Village |
| Pushpin Map: | Vestland#Norway |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location of the village |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Western Norway |
| Subdivision Name2: | Vestland |
| Subdivision Type3: | District |
| Subdivision Name3: | Sogn |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Lærdal Municipality |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Postal Code Type: | Post Code |
| Postal Code: | 6887 Lærdal |
| Coordinates: | 61.0584°N 7.5184°W |
| Elevation M: | 33 |
| Elevation Footnotes: | [1] |
Tønjum is a village in Lærdal Municipality in Vestland county, Norway. The village is located along the river Lærdalselvi, about southeast of the municipal centre of Lærdalsøyri. The eastern end of the Lærdal Tunnel (part of the European route E16 highway) is located just north of Tønjum. The highway leaves the tunnel and heads south through Tønjum, past Tønjum Church, and then east towards the village of Borgund and the Filefjell mountains.[2]
The village is primarily a farming village with assorted vegetable production as their main occupation. In recent years, the growing of cherries has become more prevalent.