| Acronym | Meaning |
| KCAS | Knots Calibrated Airspeed |
| KCRT | Keyboard Cathode RaY Tube |
| KCS | Keyboard Configuration Studies |
| KDMS | Kennedy Data Management SYstem(s) |
| KDN | Kinetically Designed Nozzle |
| KDT | Keyboard And Display Test |
| KDU | Keyboard And DisPlay Unit |
| KEAS | Knots Equivalent Airspeed |
| KG | Kilogram |
| KGAL/MIN | Kilogallons Per Minute |
| KHB | KSC Handbook |
| KHZ | Kilohertz |
| KIAS | Knc)ts Indicated Airspeed |
| KIB | KiloPounds |
| KILL | Kilowatt |
| KIP | Keyboard Input Processor |
| KIS | Kitting Instruction Sheet |
| KM | Kilometers |
| KMI | KSC Management Instruction |
| KMR | Kwaialein Missile Range |
| KMS | K-Words X Millions Of Seconds |
| KN | Kitting Notice |
| KNO | KSC Notice |
| KOI | Kano |
| KOM | KSC Operation Instruction |
| KOM | KSC Organizational Manual |
| KOPS | Thousand Of Operations Per Second |
| KPD | KSC Program Directive |
| KPPS | KiloPulses Per Second |
| KPRD | KSC Program Requirements Document |
| KPS | Kilometers Per Second |
| KSA | Ku-Band Single Access |
| KSA | Ku-band Single Access |
| KSC | John F. Kennedy Space Center |
| KSC | Kennedy Space Center |
| KSCAP | Kennedy Space Center Area Permit |
| KSSS | KSC Station Set Specification |
| KT | Kit |
| KT | Knots |
| KU | Keyboard Unit |
| KUSP | Ku-Band Signal Processor |
| KUSP | Ku-band Signal Processor |
| KUSP | Ku-Band Single Processor |
| KV | Kilovolt |
| KVA | Kilovoltampere |
| KWH | Kilowatt Hours |
| KYBD | Keyboard |
| L | Launch |
| L | Left |
| L | Length |