| Acronym | Definition |
|---|
| KK | Okay (online chat) |
| KK | Kuukausi (Finnish: month) |
| KK | Konkurs (Swedish: bankruptcy) |
| KK | Kota Kinabalu (state capital of Sabah in east-Malaysian Borneo) |
| KK | Kiss Kiss |
| KK | Krispy Kreme (doughnuts) |
| KK | Kasey Kahne (NASCAR driver) |
| KK | Kleinkaliber (German sub-caliber weapon) |
| KK | Kinnickinnic (river in Wisconsin) |
| KK | Kabushiki Kaisha (Publicly Traded Company, Japan) |
| KK | Katrina Kaif (Indian actress) |
| KK | Kit Kat (chocolate candy bar) |
| KK | Košarkaški Klub (Croatian: Basketball Club) |
| KK | Two Kings (in hand of cards) |
| KK | Kinokuniya (Japanese bookstore) |
| KK | Kingda Ka (Six Flags Great Adventure, Jackson, NJ) |
| KK | Kuala Kangsar (Malaysia) |
| KK | Keittokomero (Finnish: kitchenette) |
| KK | Kyle Korver (NBA Player) |
| KK | Kvinner Og Klær (Norwegian women's magazine) |
| KK | Kool Kat |
| KK | Krusty Krab (Sponge Bob Square Pants) |
| KK | Kosten Koper (Dutch: buyer of a house pays all extra costs) |
| KK | Konekivääri (Finnsh: machine gun) |
| KK | oK Kool |
| KK | Khwendo Kor (Pakistani organization; est. 1993) |
| KK | Kokonaan Kielletty (Finnish: totally banned) |
| KK | Kanya Kumari (India) |
| KK | Kenyon & Knott (English phonetic system, Taiwan) |
| KK | Konnectivity Koordination |
| KK | Kader Khan (Indian actor) |
| KK | Kedge Keep (Everquest gaming) |
| KK | Kriss Kringle (anonymous Christmas gift sharing) |
| KK | Kaiserlich und Königlich (Imperial and Royal; prefix for Austrian government authorities 1830-1918) |
| KK | Kenan & Kel (TV Show) |
| KK | Key Encrypting Key (FIPS) |
| KK | King Krab |
| KK | KostenKoper (German: buyer of a house pays all extra costs) |
| KK | Kalaignar Karunanidhi Nagar (DMK party chief) |
| KK | Koala Kong (gaming) |
| KK | Kid Kamikaze (wrestler) |
| KK | KoopaKing (gaming team) |
| KK | The Killing Kompany (murder mystery dinner theatre shows) |
| KK | [not an acronym] Okay (chat) |
| KK | Konbit Kreyol (Haitian student organization) |
| KK | Kreative Korporation |
| KK | Korinthen-Kacker |
| KK | Kyoji Kondo (Japanese geneticist who developed diabetic mouse strain) |
| KK | Kall Kard |
| KK | Kyles Killers (online gaming clan) |
| KK | Kingdom Komputers (Philipsburg, Pennsylvania, USA) |