| Name |
Major stations |
Length (km) |
Comments |
| JR railway lines |
| JR Kyūshū |
| Nagasaki Hon | [Hizen-Ōura] - Isahaya - Kikitsu - Urakami - Nagasaki | 46.3 |
|
| Nagasaki Hon (Old line) | Kikitsu - Nagayo - Urakami | 23.5 |
|
| Ōmura | Sasebo - Haiki - Ōmura - Isahaya | 47.6 |
|
| Sasebo | [Arita] - Haiki - Sasebo | 16.8 |
|
| Non JR railway lines |
| Matsuura |
| Nishi-kyūshū | [Imari] - Matsuura - Sasebo | 70.0 |
|
| Shimabara |
| Shimabara Tetsudō | Isahaya - Shimabara-Gaikō - Kazusa | 43.2 |
|
| Tramway lines |
| Nagasaki |
| Akasako | Akasako - Sumiyoshi | 0.4 |
|
| Hon | Sumiyoshi - Nagasaki-ekimae - Shōkakujishita | 6.9 |
|
| Hotarujaya | Nishi-Hamanomachi - Hotarujaya | 2.2 |
|
| Ōura | Tsukimachi - Ishibashi | 1.1 |
|
| Sakuramachi | Nagasaki-ekimae - Kōkaidō-mae | 0.9 |
|