| Acronym | Meaning |
| KNA | Saint Kitts And Nevis (ISO 3166 Trigram) |
| KNVB | Koninklijke Nederlandse Voetbal Bond (Dutch For Royal Netherlands Football Association) |
| KO | Knocked Out |
| KO | Korean Language (ISO 639-1 Code) |
| KOM | Komi Language (ISO 639-2 Code) |
| KON | Kongo Language (ISO 639-2 Code) |
| KOR | Korean Language (ISO 639-2 Code) |
| KOR | Republic Of Korea (ISO 3166 Trigram) |
| KP | Kim Possible |
| KPNO | Kitt Peak National Observatory |
| KPV | Krupnokaliberniy Pulemet Vladimorova (Russian ???? ???????????????? ??????? ??????????? |
| KPVT | Krupnokaliberniy Pulemet Vladimorova Tankoviy (Russian ???? ???????????????? ??????? ??????????? ???????? |
| KPW | North Korean Won (ISO 4217 Currency Code) |
| KQ | Kenya Airways (IATA Airline Designator) - Kingman Reef (FIPS 10-4 Territory Code) |
| KR | Kanuri Language (ISO 639-1 Code) |
| KR | Kiribati (FIPS 10-4 Country Code) - Republic Of Korea (ISO 3166 Digram) |
| KR | Krypton |
| KRW | South Korean Won (ISO 4217 Currency Code) |
| KS | Kansas (postal Symbol) - Republic Of Korea (FIPS 10-4 Country Code) |
| KS | Kashmiri Language (ISO 639-1 Code) - Kilosecond |
| KS | Kilosiemens |
| KSC | Kennedy Space Center |
| KSI | Killed Or Seriously Injured |
| KSM | Korean Service Medal |
| KT | Christmas Island (FIPS 10-4 Territory Code) -Knight Of The Order Of The Thistle - Knights Templar |
| KT | Kilotesla |
| KTS | Knight Of The Tower And Sword (of Portugal) |
| KU | Kurdish Language (ISO 639-1 Code) |
| KU | Kuwait (FIPS 10-4 Country Code) |
| KUA | Kuanyama Language (ISO 639-2 Code) |
| KUL | Katholieke Universiteit Leuven (Flemish |
| KUR | Kurdish Language (ISO 639-2 Code) |
| KUW | Kuwait (UNDP Country Code) |
| KV | Kavminvodyavia (IATA Airline Designator) -Kendriya Vidhyalaya (Indian School) - Kliment Voroshilov (tanks) - K?chel-Verzeichnis (Mozart Catalogue) - Valley Of The Kings (originally Kings' Valley) |
| KV | Kilovolt |
| KV | Komi Language (ISO 639-1 Code) |
| KVM | Keyboard |
| KVT | Killer-Victim Table (military Simulations) |
| KW | Cornish Language (ISO 639-1 Code) |
| KW | Kilowatt |
| KW | Kuwait (ISO 3166 Digram) |
| KWB | Kids' WB! |
| KWD | Kuwaiti Dinar (ISO 4217 Currency Code) |
| KWT | Kuwait (ISO 3166 Trigram) |
| KX | Cayman Airways (IATA Airline Designator) |
| KY | Cayman Islands (ISO 3166 Digram) - Kentucky (postal Symbol) |
| KY | Kyrgyz Language (ISO 639-1 Code) |
| KYD | Cayman Islands Dollar (ISO 4217 Currency Code) |
| KZ | Kazakhstan (FIPS 10-4 Country Code; ISO 3166 Digram) |
| KZT | Kazakh Tenge (ISO 4217 Currency Code) |