| 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) |