| Acronym | Definition |
|---|
| RDCA➣Red Deer Construction Association (Alberta, Canada) |
| RDCA➣Robert Duzoglou Combative Arts |
| RDCA➣Ringwood District Cricket Association |
| RDCA➣Rite of Dedication of a Church and an Altar (Catholic church) |
| RDCA➣Reverse Dollar Cost Averaging (retirement) |
| RDCA➣Regional Director, Civil Aviation (Canada) |