| Abbreviation | Definition |
|---|---|
| KABC | Knoxville Association of Bridge Clubs |
| KAC | Kauai Anime Club |
| KAC | Kauai Athletic Club |
| KAC | Kenitra Athletic Club |
| KAC | Kingwood Athletic Club |
| KAC | Kiwi Asian Club |
| KAHC | King's Alleyn's Hockey Club |
| KARC | Kalamazoo Amateur Radio Club |
| KASC | Kettering Amateur Swimming Club |
| KBBC | Kuala Belait Boat Club |
| KBC | Kangaroo Boxing Club |
| KBC | Kitler Bud Club |
| KBC | Komti Business Club |
| KBCW | Karate und Budo Club Winterthur |
| KBRC | Kalgoorlie Boulder Racing Club |
| KBSC | Koombana Bay Sailing Club |
| KCA | Keeshond Club of America |
| KCAC | Kansas City Athletic Club |
| KCC | Kenosha Country Club |
| KCC | Korean Culture Club |