This is a list of tunnels on Thailand's railway network.
| Railway Tunnels in Thailand | ||||||
|---|---|---|---|---|---|---|
| Tunnel | Picture | Length | Location | Line(s) | Note(s) | |
| Khun Tan Tunnel | 1352.15m (4,436.19feet) | Lampang and Lamphun Province | Northern Line | Located adjacent to Khun Tan station at an altitude of 577 m, it is the highest station on the Thai rail network. The tunnel is in Doi Khun Tan National Park and it took 11 years to build, being completed in 2461 (1918). | ||
| Phra Putthachai Tunnel | 1197m (3,927feet) | Saraburi Province | Eastern Line | The longest only Thai construction railway tunnel of Thailand. | ||
| Khao Phlung Tunnel | 362.44m (1,189.11feet) | Uttaradit and Phrae Province | Northern Line | Khao Phlung Tunnel was constructed in 1910 (BE 2453). | ||
| Chong Khao Tunnel | 235.9m (774feet) | Nakhon Si Thammarat Province | Southern Line | |||
| Khao Phang Hoei Tunnel | 230.6m (756.6feet) | Lopburi Province | Northeastern Line | Established on August 19, 1967. | ||
| Huai Mae Lan Tunnel | 130.2m (427.2feet) | Phrae Province | Northern Line | Huai Mae Lan Tunnel was constructed in 1912 (BE 2455) | ||
| Pang Tub Khob Tunnel | 120.09m (394feet) | Uttaradit Province | Northern Line | The shortest tunnel, constructed 1909 (BE 2452)Alsthom loco passing south through the tunnel | ||