| Acronym | Definition |
|---|
| STU➣Student |
| STU➣Secure Telephone Unit |
| STU➣St. Thomas University (Fredericton, New Brunswick) |
| STU➣St. Thomas University (Miami, Florida) |
| STU➣Slovenskej Technickej Univerzity (Slovenia: Slovak University of Technology) |
| STU➣Stuttgart Stock Exchange (Germany) |
| STU➣Set Top Unit |
| STU➣Streaming Tape Unit |
| STU➣System Testing Unit |
| STU➣Sturgeons (FAO fish species code) |
| STU➣SHDSL (Single-Line High-Bit-Rate Digital Subscriber) Transceiver Unit |
| STU➣Separate Technical Unit (manufacturing regulations) |
| STU➣Short Term Update |
| STU➣Subscriber Terminal Unit (data over cable) |
| STU➣Slovak Technical University |
| STU➣Società di Trasformazione Urbana (Italian: Urban Transformation Company) |
| STU➣Star Tracker Unit |
| STU➣Special Tactical Unit |
| STU➣Security Technology Unit |
| STU➣Steel Tube Umbilical (energy exploration) |
| STU➣Stuart Petroleum Limited (Adelaide, Australia; stock symbol) |
| STU➣Satellite Transmission Unit |
| STU➣Special Teams Unit |
| STU➣Secure Terminal Unit |
| STU➣Short Ton Unit |
| STU➣Singapore Teachers Union |
| STU➣Shuttle Test Unit (US NASA) |
| STU➣Sensor Transmitter Unit |
| STU➣Secure Telecommunication Unit |
| STU➣Systems Test Unit |
| STU➣Sled Test Unit |
| STU➣Science, Technology, and Utilization |
| STU➣Skin Test Unit |
| STU➣Stratum Traceability Unknown (Sprint) |
| STU➣Société Internationale d'Urologie (French) |
| STU➣Sync Traceability Unidentified |
| STU➣Special Topics Update |
| STU➣Shock Treatment Unit (medical) |
| STU➣Signal Transmission Unit |