| Acronym | Definition |
|---|
| RDO | Radio |
| RDO | Radio Button |
| RDO | Rampage Data Object |
| RDO | Race Day Optimized (biking; Niner Air9) |
| RDO | Resort Development Organisation (Belgium) |
| RDO | Remote Data Object |
| RDO | Responsible Dog Ownership |
| RDO | Regional Development Organization (various locations) |
| RDO | Regional Development Officers |
| RDO | Rostered Day Off (Australia) |
| RDO | Revenue District Office |
| RDO | Rate Distortion Optimization |
| RDO | Regular Day Off |
| RDO | Regular Democratic Organization (est. 1874; New Orleans, LA) |
| RDO | Radio; Wireless (US Navy) |
| RDO | Rapid Decisive Operations |
| RDO | Regional Duty Officer (various organizations) |
| RDO | Resource Definition Online |
| RDO | Regional Director of Operations |
| RDO | Radiological Defense Officer (various organizations) |
| RDO | Raster Document Object (file format; Xerox) |
| RDO | Redistribution Order |
| RDO | Regional Disaster Office |
| RDO | Rural Development Office (USDA) |
| RDO | Réseau Diabète Obésité (French: Diabetes Obesity Network) |
| RDO | Restaurant Deutsche Oper (German: German Opera Restaurant) |
| RDO | Rear Detachment Officer (US Army) |
| RDO | Raw Data Object |
| RDO | Runway Duty Officer |
| RDO | Rotating Days Off |
| RDO | Railway Development Office (Hong Kong) |
| RDO | Regimental Duty Officer |
| RDO | Rwanda Development Organisation |
| RDO | Requirements-Driven Outline |
| RDO | Reefs Dot Org (website) |
| RDO | Revenue Development Officer |
| RDO | Rehabilitation and Development Organization |
| RDO | Research & Development Objectives |
| RDO | Repair Design Office (aviation) |
| RDO | Reverse Detection Ordering |
| RDO | Revue de Droit d'Ottawa (French: Ottawa Law Review; Canada) |
| RDO | Recherche et Développement de l'Ontario (French: Research and Development of Ontario; Canada) |
| RDO | Red Dawg Order |