| Acronym | Definition |
|---|
| CSDU➣Centre de Stockage des Déchets Ultimes (French: Ultimate Waste Storage Center) |
| CSDU➣Constant Speed Drive Unit (aircraft) |
| CSDU➣Cardiac Step Down Unit (heart care) |
| CSDU➣Centro Studi Deflussi Urbani (Italian: Urban Hydraulics Research Center) |
| CSDU➣Civil Society Development Union (Armenia) |
| CSDU➣Cadaveric Sludge Dispenser Unit (band) |
| CSDU➣Core Service Data Unit |
| CSDU➣Column-Stabilized Drilling Unit (construction) |