ISTU
| Acronym | Definition |
|---|---|
| ISTU | International Symposium on Therapeutic Ultrasound |
| ISTU | Irkutsk State Technical University (Russia) |
| ISTU | International Society for Therapeutic Ultrasound |
| ISTU | Internationale Studententheaterunion |
| ISTU | Isometric Strength Testing Unit (hand grip device) |
| ISTU | International Social Trends Unit (research; Ipsos; UK) |