| Abbreviation | Definition |
|---|---|
| JSAM | Joint Service Aircrew Mask |
| JSTARS | Joint Surveillance and Target Attack Radar System |
| JTACS | Joint Tactical Air Control System |
| KAF | Kenya Air Force |
| KAF | Kuwait Air Force |
| KAFA | Korea Air Force Academy |
| KAFB | Keesler Air Force Base |
| KAFB | Kelly Air Force Base |
| KAFB | Kirkland Air Force Base |
| KAFB | Kirtland Air Force Base |
| KPAF | Korean People's Air Force |
| LACM | Land Attack Cruise Missile |
| LAF | Lathistian Air Force |
| LAFB | Laughlin Air Force Base |
| LaGG | Lavochkin Gorbunov Gudkov |
| LANTERN | Low-Altitude Navigation, and Targeting by Infra-Red at Night. |
| LCMS | Laser CounterMeasure System |
| LLADI | Low-Level Air Defense Interface |
| LLAPI | Low-Level Air Picture Interface |
| LORC | Laser and Optics Research Center (US Air Force Academy) |