| Acronym | Definition |
|---|
| CSK | Chennai Super Kings (cricket team; India) |
| CSK | Club Stephen King (France) |
| CSK | Complete Suspension Kit |
| CSK | Countersunk (head rivet) |
| CSK | Countersink |
| CSK | Cooh-Terminal SRC Kinase |
| CSK | Checker Schucks Kragen (retail auto parts stores) |
| CSK | Chaos-Shift-Keying |
| CSK | Commerce Starter Kit (software) |
| CSK | Committee for Standardization of the Democratic People's Republic of Korea |
| CSK | Ceccone Sport Karting (French go-kart racing company) |
| CSK | Combat Survival Knife |
| CSK | Christopher S. Kälin (CSK Management Ltd.; Wayne, PA) |
| CSK | Cyclic Shift Keying |
| CSK | Compatible Shift Keying |
| CSK | Committee for Standardisation Korea |
| CSK | Can't Stop Killing (gaming clan and street gang) |
| CSK | Czechoslovak Communist Party |