| Abbreviation | Definition |
|---|---|
| KEC (M) | Kerala Congress (Mani) |
| KED | Kendrick Extrication Device |
| KEDO | Korean Energy Development Organisation |
| KERA | Kentucky Early Retirement Act |
| KEWL | Knowledge Excellence Wisdom Learning |
| KEY | Kiwanis Educated Youth |
| KEYB | load Foreign Keyboard Code Page |
| KEYBxx | load Foreign Keyboard Code Page for non-US keyboard |
| KEYS | Keep Earning Your Success |
| KFAB | Kidney-fixing Antibody |
| KFC | Kennedy Flight Center |
| KFC | Knox Farmers Cooperative |
| KFT | Kidney function test |
| KG | Kindergarten |
| KG | Kilo-Gram |
| KG | Kindergarten |
| KGB | Komitet Gosudarstvennoy Bezopasnosty ( Committee for State Security of Russia) |
| KGF | Keratinocyte Growth Factor |
| KHV | Koi Herpes Virus |
| KI | Potassium iodide |
| KIAS | Knots Indicated Airspeed |
| KICS | Kennedy Integrated Communications Services |
| KIDS | Keratitis Ichthyosis and Deafness Syndrome |
| KIMS | Kennedy Inventory Management System |
| KINDS | Kinmen Neurologic Disorders Survey |
| KIP | Keyboard Input Processor |
| KIS | Kitting Instruction Sheet |
| KISA | Knight In Shining Armor |
| KIT | Knight In Transit |
| KITE | Kinetic Isolation Tether Experiment |
| KKK | Ku-Klux-Klan |
| KKK | Ku Klux Klan (Racist group of US) |
| KLA | Kosovar Liberation Army |
| KLA | Kosovo Liberation Army |
| KLA | Kansas Livestock Association |
| KLMRC | Kennedy Labor Management Relations Council |
| KLS | Kidney, liver, spleen |
| KMCL | Kernel - Mode Client Library |
| KMDF | Kernel Mode Driver Framework |
| KMFP | Kilum Mountain Forest Project |
| KMI | KSC Management Instruction |
| KMR | Kwajalein Missile Range |
| KMT | Kuomintang |
| KNPR | Kennedy NASA Procedural Requirements |
| KNRK | Kirsten Sarcoma Virus In Normal Rat Kidney |
| KNZ | Konza Prairie Research Natural Area |
| KOA | Keck Observatory Archive |
| KOI | KSC Operation Instruction |
| KOM | KSC Organizational Manual |
| KOPS | Thousand of Operations per Second |