| Abbreviation | Definition |
|---|---|
| K+ | Potassium |
| K-CL | Potassium Chloride |
| K-WIRE | Kirschner wire |
| K.G. | Kimder Garden |
| K.V.S. | Kendrya Vidhalia Schools |
| KA | Keep All |
| KA | Ketoacidosis |
| KAFO | Knee Ankle Foot Orthosis |
| KANU | Kenya African National Union |
| KAO | Kuiper Airborne Observatory |
| KAP | Knowledge Attitude Practice |
| KAP | Korean American Princess |
| KAPL | KSC Approved Parts List |
| KAPS | Kakrapur Atomic Power Station |
| KATE | Knowledge-Based Automatic Test Equipment |
| KATS | Kennedy Avionics Test Set |
| KAU | Kilo Accounting Unit |
| KAU | Kerala Agricultural University |
| KB | Construction Bureau |
| KBAC | Kennedy Booster Assemblv Contractor |
| KBCS | Knowledge Based Computer Systems |
| KBE | Knight of the British Empire |
| KBIM | Keyboard Interface Module |
| Kbps | Kilobits Per Second |
| KCA | Keyboarding And Computer Applications |
| KCAS | Knots Calibrated Airspeed |
| KCB | Knight Commander of the Bath |
| KCCS | Kennedy Complex Control System |
| KCFA | Kona Coffee Farmers Association |
| KCFB | Kings County Farm Bureau |
| KCFC | Kentucky Clean Fuels Coalition |
| KCIA | Kansas Crop Improvement Association |
| KCL | Potassium Chloride |
| KCP | Kinesiology Certification Program |
| KCRT | Keyboard Cathode Ray Tube |
| KCS | Keyboard Controller Style |
| KCS | Keyboard Configuration Studies |
| KD | Knee Disarticulation |
| KDC | Kidney Disease Treatment Center |
| KDE | Kraft Durch Enthusiasmus |
| KDEU | Theodorus H. van der Kwast Department of Experimental Urology |
| KDKT | Korean Demokraattisen KansanTasavallan |
| KDMS | Kennedy Data Management System |
| KDN | Kinetically Designed Nozzle |
| KDP | Kennedy Documented Process |
| KDT | Keyboard and Display Test |
| KDU | Keyboard and Display Unit |
| KEAS | Knots Equivalent Airspeed |
| KEC | Kraft Export Consultant |
| KEC | Kerala Congress |