| Acronym | Definition |
|---|
| KKK | Ku Klux Klan |
| KKK | Korduma Kippuvad Küsimused (Estonian: Frequently Asked Questions) |
| KKK | Katechizm Kosciola Katolickiego (Polish: Catechism of the Catholic Church) |
| KKK | Kids Killing Kids |
| KKK | Kuhnle Kopp Kausch |
| KKK | Kitakubu Katsudou Kiroku (Japanese anime) |
| KKK | Kingdom of Kupa Keep (South Park) |
| KKK | Korduvalt Küsitud Küsimused (Estonian: Frequently Asked Questions) |
| KKK | Kappa Kappa Kappa (MadTV) |
| KKK | Kool Kids Klan |
| KKK | Kainan sa Kalye Kanluran (eatery; Philippines) |
| KKK | Keskuskauppakamari (Finnish: Central Chamber of Commerce) |
| KKK | Kit Kat Klub |
| KKK | Kinder, Küche, Kirche (German: children, kitchen, church; WWII Nazi slogan) |
| KKK | Kool Kids Klub |
| KKK | Kaibigan, Kaklase At Kabarilan (Filipino; Friends, Classmates and Kabarilan) |
| KKK | Krusty Komedy Klassic (The Simpsons) |
| KKK | Kühnle, Kopp & Kausch AG (German turbine manufacturer; now aka 3K-Warner Turbosystems GmbH) |
| KKK | Kingdom of Koopa Keep (South Park) |
| KKK | Kara Kuvvetleri Komutanligi (Turkish) |
| KKK | Kitty Kat Klub |
| KKK | Kryo Kanal Köln (German: Cryogenic Wind Tunnel; Cologne, Germany) |
| KKK | Kernkraftwerk Krümmel GmbH (Krümmel, Germany nuclear plant) |
| KKK | Kooky Kids Korner |
| KKK | Kataastaasan, Kagalanggalangan na Katipunan (Philippine revolutionary movement in early 1800's) |
| KKK | Krispy Kreme Klan |
| KKK | Kataastaasang Kagalanggalang Katipunan ng mga Anak ng Bayan |
| KKK | Kalahari Kricket Klan (Ultra Cricket group) |
| KKK | Kaptain Krunch Krew (gaming clan) |
| KKK | Kelmiser Karnevals Komitee (German) |
| KKK | Kristiansund Kamera Klubb |
| KKK | Kids Kollecting Kans (gaming clan) |
| KKK | Krazy Killing Kangaroos (gaming clan) |
| KKK | Kentucky Kyudo Kai (Japanese archery) |
| KKK | Kool Kolor Kids |