| Thy Line | |
| Native Name: | Thybanen |
| Type: | Railway |
| System: | Danish railway |
| Start: | Struer |
| End: | Thisted |
| Stations: | 12 |
| Open: | 20 April 1882 |
| Owner: | Banedanmark |
| Operator: | Arriva Danish State Railways |
| Character: | Passenger trains |
| Linelength: | 73.6km (45.7miles) |
| Tracks: | Single |
| Speed: | 75 km/h |
The Thy Line (Danish: '''Thybanen''') is a 73.6km (45.7miles) long standard gauge single track railway line in Denmark which runs between Struer and Thisted through the historical region of Thy.
The railway opened in 1882. It is owned and maintained by Rail Net Denmark and served with passenger trains by Arriva and the Danish State Railways (DSB). The Thy Line runs north from Struer, crossing the Limfjord on a long bascule bridge, the Oddesund Bridge. From Oddesund the line cuts through the peninsula of Thyholm and continues through Thy to reach Thisted.