STTS
| Acronym | Definition |
|---|---|
| STTS | Sekolah Tinggi Teknik Surabaya (Indonesian: Surabaya Technical High School; Surabaya, Indonesia) |
| STTS | Soft Tactile Transducer Sensor (safety mat system) |
| STTS | Service Tunnel Transport System (Channel Tunnel) |
| STTS | System Test & Troubleshooting Station |
| STTS | Scottish Tramway and Transport Society (UK; est. 1951) |
| STTS | Shatin Tsung Tsin Secondary School (Hong Kong) |
| STTS | Scaphoid-Trapezium-Trapezoid Subluxation (hand injury) |