| Acronym | Definition |
|---|
| SUD➣Substance Use Disorder |
| SUD➣Santos dos Últimos Dias (Portuguese: Latter Day Saints) |
| SUD➣Sustainable Urban Development (various organizations) |
| SUD➣Sudan Airways (ICAO code) |
| SUD➣Special Utility District (water systems) |
| SUD➣Signed under Duress (contract law) |
| SUD➣Stretched Upper Deck (aircraft modifications) |
| SUD➣Start up Disk |
| SUD➣Single Use Device |
| SUD➣Surface Design |
| SUD➣Sudden Unexplained Death |
| SUD➣Solidaires Unitaires et Démocratiques (France) |
| SUD➣Safe Use Determination |
| SUD➣Solidarité, Urgence, Développement (French: Solidarity, Urgency, Development) |
| SUD➣Single User Device |
| SUD➣Sololatecos Unidos Por El Desarrollo (Spanish: Solola States For Development; Guatemala) |
| SUD➣Stopping Underage Drinking (Washington, DC) |
| SUD➣System Under Design |
| SUD➣Schedule of Unreconciled Differences (financial auditing) |
| SUD➣Stress Ulcer Disease |
| SUD➣Single-User Detector |
| SUD➣Schedule of Unadjusted Differences (accounting, auditing) |