| Acronym | Meaning |
| LDC | Land Defense of CONUS |
| LDC | Late-Developing Country |
| LDC | Lead Dust Collector (silencer of muzzle for firearms) |
| LDC | Leadership Development Center |
| LDC | Leadership Development Conference |
| LDC | Lewes District Council (UK) |
| LDC | Lichfield District Council (UK) |
| LDC | Lightweight Deployable Communications |
| LDC | Linear Demolition Charge |
| LDC | Local Defense Center |
| LDC | Local Distribution Center |
| LDC | Logistics Data Center |
| LDC | Logistics Data Communications |
| LDC | Lot Date Code |
| LDC | Lower Division Clerk (various organizations) |