| K | Potassium |
| K | Thousand |
| KBr | Potassium Bromide Crystal |
| KC | Kinematic Coupling |
| KDLOC | 1000 Developed Source Lines Of Code |
| KeV | Kilo Electron Volt |
| KIT | Key Intelligence Topics |
| KLARFF | KLA Review File Format |
| KPA | Key Process Area |
| Kr | Krypton |
| KSLOC | 1000 Source Lines Of Code |
| kV | Kilovolt |