| Acronym | Definition |
|---|
| CAK | Akron-Canton Airport (airport code; Ohio) |
| CAK | CDk Activating Kinase |
| CAK | Centraal Administratie Kantoor (Dutch organisation for financing of special health care costs and institutions) |
| CAK | Controlled-Atmosphere Killing (animal slaughter method) |
| CAK | Christian Academy of Knoxville |
| CAK | Center for Afrikansk Kulturformidling (Norwegian: Center for African Culture) |
| CAK | Akron/Canton, OH, USA - Akron-Canton Regional Airport (Airport Code) |
| CAK | Centra Aplikované Kybernetiky (Czech: Center for Applied Cybernetics) |
| CAK | Cardiology Associates of Kentucky (Lexington, KY) |
| CAK | Card Authentication Key (electronic security) |
| CAK | Centre Angevin de Karaté Do (French martial arts school) |
| CAK | Carcinome Adénoïde Kystique (French: Adenoid Cystic Carcinoma) |
| CAK | Christopher Allen Kirkpatrick (NSYNC) |
| CAK | Concept Assessment Kit (educational tool) |
| CAK | Club d'Astronomie de Kintzheim (French: Kintzheim Astronomy Club; Kintzheim, France) |