| Chichibu Main Line | |
|---|---|
 A Chichibu Railway 7500 series EMU on the Chichibu Main Line in May 2011 | |
| Overview | |
| Native name | 秩父本線 |
| Owner |  Chichibu Railway |
| Locale | Saitama Prefecture |
| Termini | |
| Stations | 36 |
| Service | |
| Depot(s) | Hirosegawara |
| History | |
| Opened | 7 October 1901 |
| Technical | |
| Line length | 71.7 km (44.6 mi) |
| Number of tracks | 1 |
| Track gauge | 1,067 mm (3 ft 6 in) |
| Minimum radius | 149 m |
| Electrification | 1500 V DC with Overhead catenary |
| Operating speed | 85 km/h (55 mph) |
The Chichibu Main Line (秩父本線, Chichibu-honsen) is a railway line in Japan, owned by the private railway operator Chichibu Railway, linking Hanyū and Mitsumineguchi, both in Saitama Prefecture.