| 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) |