WTSS
| Acronym | Definition |
|---|---|
| WTSS | West Toronto Support Services (Canada) |
| WTSS | Weapon Training Simulation System |
| WTSS | Where the Son Shines (religious website) |
| WTSS | When the Sun Sleeps (band) |
| WTSS | Waste Tank Safety Support |
| WTSS | Women's Technical Support Services (water supplying) |