| DCU | Borland Delphi Delphi Compiled Unit 
| Others |
| DCU | Danisco Culture Unit
| Others |
| DCU | Data Cache Unit
| Others |
| DCU | Data Capture Unit
| Others |
| DCU | Data Collection Unit
| Others |
| DCU | Data Concentrator Unit
| Others |
| DCU | Data Control Unit
| Others |
| DCU | Debug Continue Until
| Others |
| DCU | Delphi Compiled Unit
| Others |
| DCU | Deluxe Commercial Unit
| Others |
| DCU | Deployment Control Unit
| Others |
| DCU | Desert Camoflage Uniform
| Others |
| DCU | Desert Camouflage Uniform
| Others |
| DCU | Design Computing Unit
| Others |
| DCU | Detective Comics Universe
| Others |
| DCU | Diagnostic Control Unit
| Others |
| DCU | Diagnostic Controller Unit
| Others |
| DCU | Diesel Control Unit
| Others |
| DCU | Digital Cloud University
| Others |
| DCU | Digital Computer Unit
| Others |
| DCU | Digital Control Unit
| Others |
| DCU | Digital Controller Unit
| Others |
| DCU | Digital Crimes Unit
| Others |
| DCU | Digital Federal Credit Union
| Others |
| DCU | Direct Culture Unit
| Others |
| DCU | Disk Clean-Up
| Others |
| DCU | Dispersion Compensation Unit
| Others |
| DCU | Display and Control Unit
| Others |
| DCU | Display Control Unit
| Others |
| DCU | Diversity, Creativity, and Unity
| Others |
| DCU | Document Control Unit
| Others |
| DCU | Domain Control Unit
| Others |
| DCU | Door Control Unit
| Others |
| DCU | Dosing Control Unit
| Others |
| DCU | Driver Control Unit
| Others |
| DCU | Dual Cab Utility
| Others |
| DCU | Dublin City University
| Others |