| KKK | Ku Klux Klan | 三Ｋ党(美国一个反对黑人的白人秘密组织) |
| KKK | Kadayam Kasthuri Kalyani | Kadayam Kasthuri Kalyani |
| KKK | Kataastaasan Kagalang-galang na Katipunan ng mga Anak ng Bayan | 阿那克昂巴彦省卡加朗加朗加朗省 |
| KKK | Kara Kuvvetleri Komutanligi (Turkish) | Kara Kuvvetelli Komutaligi（土耳其语） |
| KKK | Korner Kar Klub | 科尔纳·卡尔克鲁布 |
| KKK | Krusty Komedy Klassic (The Simpsons) | 克鲁斯特·科梅迪·克拉西奇（《辛普森一家》） |
| KKK | Ku Klux Klown | 三K区 |
| KKK | Kataastaasan, Kagalanggalangan na Katipunan (Philippine revolutionary movement in early 1800's) | Kataastaasan,Kagalanggalangan钠Katipunan菲律宾早在1800年的革命运动 |
| KKK | Kehlkopfkrebs | Kehlkopfkrebs公司 |
| KKK | Kara Kuvvetleri Komutanligi | 卡拉·库夫韦特列里·科穆塔利吉 |
| KKK | Krazy Kooks Klan | Krazy Kooks党 |
| KKK | Kristian Kids Korner | Kristian Kids科尔纳 |
| KKK | Krispy Kreme Kakes | Krispy Kreme Kakes公司 |
| KKK | KÜhnle, Kopp & Kausch AG (German turbine manufacturer; now aka 3K-Warner Turbosystems GmbH) | KÜhnle, Kopp & Kausch AG (German turbine manufacturer; now aka 3K-Warner Turbosystems GmbH) |
| KKK | Kryo Kanal Köln (German: Cryogenic Wind Tunnel; Cologne, Germany) | Kryo Kanal Köln (German: Cryogenic Wind Tunnel; Cologne, Germany) |
| KKK | Kinder, KÜche, Kirche (German: children, kitchen, church; WWII Nazi slogan) | Kinder, KÜche, Kirche (German: children, kitchen, church; WWII Nazi slogan) |
| KKK | Keskuskauppakamari (Finnish: Central Chamber of Commerce) | Keskuskauppakamari（芬兰语：中央商会） |
| KKK | Kernkraftwerk KrÜmmel GmbH (KrÜmmel, Germany nuclear plant) | Kernkraftwerk KrÜmmel GmbH (KrÜmmel, Germany nuclear plant) |
| KKK | Krispy Kreme Klan | Krispy Kreme Klan公司 |
| KKK | Kristiansund Kamera Klubb | Kristiansund Kamera Klubb |
| KKK | Kelmiser Karnevals Komitee (German) | Kelmetr Karnevals Komitee（德语） |
| KKK | Korduvalt KÜsitud KÜsimused (Estonian: Frequently Asked Questions) | Korduvalt KÜsitud KÜsimused (Estonian: Frequently Asked Questions) |
| KKK | Kappa Kappa Kappa (MadTV) | 卡帕卡帕（MadTV） |
| KKK | Kataastaasang Kagalanggalang Katipunan ng mga Anak ng Bayan | 巴彦省卡加朗加朗加朗省 |
| KKK | Kalahari Kricket Klan (Ultra Cricket group) | Kalahari Kricket Klan（超级板球组） |
| KKK | Kit Kat Klub | Kit Kat Klub公司 |
| KKK | Kooky Kids Korner | Kooky Kids科尔纳 |
| KKK | Krazy Killing Kangaroos (gaming clan) | Krazy Killing Kangaroos（游戏部落） |
| KKK | Kids Kollecting Kans (gaming clan) | 儿童Kollecting Kans（游戏部落） |
| KKK | Kool Kids Klub | Kool儿童俱乐部 |
| KKK | Kool Kolor Kids | Kool Kolor儿童 |
| KKK | Kitty Kat Klub | 基蒂·凯特·克鲁布 |