| Abbreviation | Definition |
|---|---|
| KK | Kalopa Koholalele |
| KKR | Korringa–Kohn–Rostoker |
| KME | Key Mouse Electronic |
| KOE | Kaohsiung Opto Electronics |
| KPA | Key Process Area |
| KS | Kearney Speaker |
| KSC | Known Switch Condition |
| KSLOC | Kilo (1024) Source Lines Of Code |
| KT | Kinkless Tetrode |
| Ku-BAND | 12 to 18 GHz frequency band |
| KUSP | Ku-Band Signal Processor |
| KUV | Kundennaher Verbrauchszyklus |
| KV | Kilovolt |
| KVE | Kaw Valley Electric |
| KVL | Kirchhoff's Voltage Law |
| L | Inductor |
| L | Luminance |
| LA | Lightning Arrester |
| LAC | Low Ambient Control |
| LADAR | LAser Detection And Ranging |