| Tølløse Line | |
| Native Name: | Tølløsebanen |
| Native Name Lang: | da |
| Type: | Local railway |
| System: | Danish railways |
| Status: | Active |
| Start: | Tølløse station |
| End: | Slagelse station |
| Stations: | 12 |
| Open: | Tølløse-Høng: Slagelse-Høng: |
| Operator: | Lokaltog[1] |
| Character: | Passenger train |
| Linelength: | 50.8km (31.6miles)[2] |
| Tracks: | Single track |
| Electrification: | No |
| Speed: | 120km/h |
The Tølløse Line (Danish: Tølløsebanen) (previously Høng-Tølløse Jernbane (HTJ) is a 50.8km (31.6miles) long standard gauge single track local passenger railway line between Tølløse and Slagelse in the western part of the island of Zealand, Denmark. It runs from Tølløse station on the Northwest Line to Slagelse station on the Copenhagen–Fredericia/Taulov Line, through a mainly rural area.
The section from Tølløse to Høng opened in 1901, whereas the section from Høng to Slagelse opened in 1898 as part of the now closed Slagelse-Værslev Line. The railway is currently operated by the railway company Lokaltog. Lokaltog runs frequent local train services from Tølløse station to Slagelse station.
The railway line from Tølløse to Høng opened on 22 December 1901 as the Høng-Tølløse Jernbane (HTJ) and connected Tølløse station on the Northwest Line with Høng station on the Slagelse-Værslev Line.
The section from Høng to Slagelse opened on 1 May 1898 as part of the Slagelse-Værslev Line. The section from Høng to Værslev of the Slagelse-Værslev Line was closed on 23 May 1971.
In May 2003, the operating company Høng-Tølløse Jernbane A/S (HTJ) was merged with the operating company of the Odsherred Line, Odsherreds Jernbane A/S, to form the railway company Vestjællands Lokalbaner (VL). On 1 January 2009, Vestsjællands Lokalbaner was again merged with the operating companies of the East Line and the Lolland Line to form the railway company Regionstog A/S (RT) responsible for train operation on four local railways on the islands of Zealand, Lolland and Falster. Regionstog A/S again merged with Lokalbanen A/S on 1 July 2015 to form the railway company Lokaltog A/S which is currently responsible for train operation and related passenger services on the Tølløse Line.
Trains on the Tølløse Line are operated by the railway company Lokaltog. Lokaltog runs frequent local train services from Tølløse station to Slagelse station.