| REDAC | Regional Economic Development Advisory Committee 
| Others |
| REDAC | Regional Economic Development Assistance Corporation
| Others |
| REDAC | Remote Data Access and Control
| Others |
| REDAC | Renault Dacia
| Others |
| REDAC | Research, Engineering and Development Advisory Committee
| Others |
| REDAC | River Engineering and Urban Drainage Research Center (Pulau Pinang, Malaysia)
| Others |