NCDU
| Acronym | Definition |
|---|---|
| NCDU | Naval Combat Demolition Unit |
| NCDU | North Carolina Ducks Unlimited (conservation group) |
| NCDU | NCurses Disk Usage |
| NCDU | Nursing Clinical Development Unit |
| NCDU | National Council for the Development of Urdu |
| NCDU | North County Darters Unlimited (Palm Beach County, Florida) |
| NCDU | North Coast Data Utilities (Norton Shores, Michigan) |