| Chertsey branch line | |
|---|---|
 | |
| Overview | |
| Other name(s) | Chertsey loop line |
| Status | Operational |
| Owner | Network Rail |
| Locale | Surrey, South East England |
| Stations | 4 |
| Service | |
| Type | Suburban rail, Heavy rail |
| System | National Rail |
| Operator(s) | South Western Railway |
| History | |
| Opened | 1849 |
| Technical | |
| Line length | 5 miles 40 chains (8.9 km) |
| Number of tracks | 2 |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
| Electrification | Yes |
The Chertsey branch line (also known as the Chertsey loop line) is a 5-mile-40-chain (8.9 km) railway line in Surrey, England. It runs from the Waterloo–Reading line at Virginia Water station to a triangular junction with the South West Main Line near Weybridge. There are intermediate stations at Chertsey and Addlestone. All of the stations are managed by South Western Railway, which operates all passenger trains. Most services run between Weybridge and London Waterloo via Hounslow and Clapham Junction. For much of the day, passengers can change to faster services at Virginia Water and Weybridge to reach the capital more quickly.
The line was built in two main stages by the London and South Western Railway. The Weybridge-Chertsey section opened in February 1848 and the extension to Virginia Water opened in October 1866. The line was electrified using the 750 V DC third-rail system by the Southern Railway in 1937.