International Express
| Platform at Hua Lamphong Station for the Bangkok to Butterworth train | |
| Overview | |
|---|---|
| Service type | Inter-city rail | 
| Status | Operational Ceased (Padang Besar–Butterworth) | 
| Locale | Thailand–Malaysia | 
| First service | 2 January 1922 | 
| Route | |
| Termini | Krung Thep Aphiwat, Bangkok, Thailand Padang Besar, Malaysia | 
| Technical | |
| Track gauge | 1,000 mm (3 ft 3+3⁄8 in) meter gauge | 
The International Express (Thai: รถด่วนพิเศษระหว่างประเทศ; Malay: Ekspres Antarbangsa) is an express train between Bangkok, Thailand and Padang Besar, Malaysia. The train formerly traveled to Butterworth, Penang.
This train's passenger cars include 2nd-class air conditioned sleepers, and an air conditioned dining car. Diesel electric locomotives such as HID (Hitachi - 2500 HP) and GEA (General Electric - 2500 HP) are used to Haul this express between Padang Besar and Hat Yai.