| Abbreviation | Definition |
|---|---|
| K | Thousand |
| KA | Kill Assessment |
| Ka | Kurtz-Above Band |
| KA | Kust Artilleriet |
| KA | The King's Arms |
| KACH | Keller Army Community Hospital |
| KAF | Kandahar Air Field |
| KAHC | Kirk Army Health Clinic |
| KAIS | Korean Air Intelligence System |
| KAIST | Korean Advanced Institute of Science and Technology |
| KAL | Key Assets List |
| KAL007 | Airliner shot down by the Russians in 1983 |
| Kalash | Kalashnikov (Russian Rifle) |
| KALI | Kilo Ampere Linear Injector |
| KAPE | Keeping the Army in the Public Eye |
| KAPP | Key Assets Protection Program |
| KAQ-1 | Kawasaki remotely piloted vehicle |
| KASP | Kraato apsaugos savanoris pajgos (National Defence Volunteer forces of Lithuania) |
| KASP | Krašto apsaugos savanoriu pajegos (National Defence Volunteer forces of Lithuania) |
| KATC | Korea Army Training Center |