| KHF | Korean hemorrhagic fever |
|---|---|
| KHM | keratoderma hereditaria mutilans |
| KHN | Knoop hardness number |
| KHP | King's Honorary Physician |
| KHS | King's Honorary Surgeon; kinky hair syndrome; Krebs-Henseleit solution |
| kHz | kilohertz |
| KI | karyopyknotic index; Kronig's isthmus |
| KI(?) | Potassium Iodide; 옥화칼륨 |
| KIA | Kligler iron agar |
| KIC | ketoisocaproate; keto isocaproic acid |