State Railway of Thailand
SRT route map (2006)  | |
| Overview | |
|---|---|
| Headquarters | 1 Rong Mueang Road, Rong Mueang, Pathum Wan, Bangkok 10330 | 
| Key people | Veeris Ammarapala (Governor) | 
| Reporting mark | SRT | 
| Locale | Thailand | 
| Dates of operation | 1951–present | 
| Predecessors | Royal State Railways of Siam (RSR) | 
| Technical | |
| Track gauge | 1,000 mm (3 ft 3+3⁄8 in) meter gauge | 
| Previous gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge | 
| Length | 4,044 km (2,513 mi) | 
| Other | |
| Website | Official website | 
The State Railway of Thailand (SRT) (Thai: การรถไฟแห่งประเทศไทย, abbrev. รฟท., RTGS: kan rot fai haeng prathet thai) is the state-owned rail operator under the jurisdiction of the Ministry of Transport in Thailand.