| Acronym | Definition |
|---|
| RTBI➣Real-Time Business Intelligence (software) |
| RTBI➣Rural Technology and Business Incubator (Indian Institute of Technology Madras; India) |
| RTBI➣Reduced Ten Bit Interface (computing) |
| RTBI➣National Association of Round Tables of Britain and Ireland |
| RTBI➣Round Table of Britain and Ireland (est. 1927) |
| RTBI➣Rockhampton Tourist and Business Information (Australia) |
| RTBI➣Retarded-Time Boundary Integral |