| Acronym | Definition |
|---|
| RKB | Responder Knowledge Base |
| RKB | Radio Kyushu Broadcasting (Japan) |
| RKB | Russell Knox Building (US Navy) |
| RKB | Rebecca Kelly Ballet (New York, NY) |
| RKB | Rice Knowledge Bank (International Rice Research Institute) |
| RKB | Reichskriegerbund (German; Nazi attire) |
| RKB | Ruang Kelas Baru (Indonesian: New Classrooms; school construction; Indonesia) |
| RKB | Russische Kommerzial Bank (German: Russian Commercial Bank; Zurich, Switzerland) |
| RKB | Rotary Kelly Bushing |
| RKB | Rig Kelly Bushing (oil and gas depth reference point) |
| RKB | Reef Keeping Basics (Eric V. Van Der Hope book) |
| RKB | Retail Knowledge Bank (UK) |