| Acronym | Definition |
|---|
| RRO➣Roles, Responsibilities and Objectives |
| RRO➣Regional Registration Office (India) |
| RRO➣Record Route Object |
| RRO➣Regulatory Reform Order (UK Office of the Deputy Prime Minister Fire Safety) |
| RRO➣Robert's Rules of Order |
| RRO➣Regional Reliability Organization |
| RRO➣Reproduction Rights Organisation |
| RRO➣Russian Ragnarok Online (gaming) |
| RRO➣Registered Roof Observer |
| RRO➣Residual Range Organics |
| RRO➣Rocky Road Outfitters (Utah) |
| RRO➣Rahmo Rehabilitation Organisation (Somalia) |
| RRO➣Radial Runout |
| RRO➣Red Raider Orientation (Texas Tech University) |
| RRO➣Revised Regulations of Ontario (Canada) |
| RRO➣Rebirth Ragnarok Online (gaming) |
| RRO➣Rappahannock River Oysters (Topping, VA) |
| RRO➣Rate & Route Operator |
| RRO➣Reality Rock Organization |
| RRO➣Rhythmic Rotation (relaxation technique) |
| RRO➣Regional Reporting Office (Hekimian) |
| RRO➣Resident Representative Office |
| RRO➣Rosteen Reconstruction Organization |