| Abbreviation | Definition |
|---|---|
| KATL | Kill All That Live |
| KATUSA | Korean Augmentation To the United States Army |
| KB | Ka Boom |
| KB | Killin Binladen |
| KB | Kilobyte |
| KB/S | Kilobits Per Second |
| KBAD | Knowledge-Based Algorithm Development |
| KBK | Knights Bridging Korea |
| KBK | Korean Bridge Knights |
| KBLPS | Knowledge-Based Logistics Planning Shell |
| KBO | Keep Buggering On |
| KBPS | KiloBytes Per Second |
| KBS | Knowledge-Based System |
| KBSA | Knowledge-Based Software Assistant |
| KBSC | Korean Battle Simulation Center |
| KC | KiloCycles (superseded by Kilohertz) |
| KC-135 | Stratotanker |
| KCA | Knight of Canada |
| KCB | Knight Commander of the Bath |
| KCIA | Korea Central Intelligence Agency |