| KAC | Kachin 
| Others |
| KAC | Kalmar Algae Collection
| Others |
| KAC | Kameron Anthony Chris
| Others |
| KAC | Kameshli, Syria
| Others |
| KAC | Kansas Association of Counties
| Others |
| KAC | Kaskus Auto Community
| Others |
| KAC | Katanka Automobile Company
| Others |
| KAC | Kathy Adams Clark
| Others |
| KAC | Katonah Art Center
| Others |
| KAC | Kauai Anime Club
| Others |
| KAC | Kauai Athletic Club
| Others |
| KAC | Kekaboo Awning Cantik
| Others |
| KAC | Kelly Athletic Complex
| Others |
| KAC | Kenitra Athletic Club
| Others |
| KAC | Kenitra Automotive City
| Others |
| KAC | Kentucky Arts Council
| Others |
| KAC | Kenyon Athletic Center
| Others |
| KAC | Kerbal Alarm Clock
| Others |
| KAC | Khmer Automobile Club
| Others |
| KAC | Kidderminster Alarm Company
| Others |
| KAC | Kidney Advocacy Committee
| Others |
| KAC | Kinetic Armor Class
| Others |
| KAC | Kingwood Athletic Club
| Others |
| KAC | Kirkland Art Center
| Others |
| KAC | Kirkland Arts Center
| Others |
| KAC | Kirriemuir Altario and Compeer
| Others |
| KAC | Kiwi Asian Club
| Others |
| KAC | Knights Armament Company
| Others |
| KAC | Knowledge Assessment Calculator
| Others |
| KAC | Korean Air Cargo
| Others |
| KAC | Korean American Coalition
| Others |
| KAC | Kuwait Airways Corporation
| Others |