SIDU
| Acronym | Definition |
|---|---|
| SIDU | Seed Inspection and Distribution Unit (Centro Internacional de Mejoramiento de Maíz y Trigo; Mexico) |
| SIDU | Sorry I Don't Understand |
| SIDU | Select Insert Delete Update (SQL database manager) |
| SIDU | Sudden Infant Death Unexplained |
| SIDU | Space Identification Utility |