QSU
| Acronym | Definition |
|---|---|
| QSU | Queer Student Union |
| QSU | Questionnaire of Smoking Urges (addiction survey) |
| QSU | Quality Systems Update |
| QSU | Quinine Sulfate Unit |
| QSU | Quality Support Unit (various universities) |
| QSU | Queer and Straight in Unity (student group; Augsburg College; Minneapolis, MN) |
| QSU | Request to Transmit (radiotelegraphy) |