| RKB | Rachel Kramer Bussel
| Others |
| RKB | Radio Kyushu Broadcasting
| Others |
| RKB | Raw Kidney Beans
| Others |
| RKB | Rebecca Kelly Ballet
| Others |
| RKB | Red Kidney Beans
| Others |
| RKB | ReichsKriegerBund
| Others |
| RKB | Resilience Knowledge Base
| Others |
| RKB | Responder Knowledge Base
| Others |
| RKB | Responsive Knowledge Base
| Others |
| RKB | Responsive KnowledgeBase
| Others |
| RKB | Ress Karamba Bar
| Others |
| RKB | Restricted Kinetic Balance
| Others |
| RKB | Retail Knowledge Bank
| Others |
| RKB | Reverse Knowledge Base
| Others |
| RKB | Rice Knowledge Bank
| Others |
| RKB | Rig Kelly Bushing
| Others |
| RKB | Right Kind of Bulldogs
| Others |
| RKB | RNA knowledge base
| Others |
| RKB | Ro Kyu Bu
| Others |
| RKB | Ro-Kyu-Bu
| Others |
| RKB | Robert K Bell
| Others |
| RKB | Rocky King Band
| Others |
| RKB | Rotary Kelly Bushing
| Others |
| RKB | ROULEMENT KUGELLAGER and BEARING
| Others |
| RKB | Russell Knox Building
| Others |
| RKB | Russische Kommerzial Bank
| Others |