| Acronym | Definition |
|---|
| SK | Saskatchewan |
| SK | Sick |
| SK | South Korea |
| SK | Slovakia |
| SK | Slovak Republic |
| SK | Serial Killer |
| SK | Stephen King (author) |
| SK | Skopje (Macedonia capital) |
| SK | Sidekick (gaming) |
| SK | Side Kick (martial arts) |
| SK | Stockport (postcode, United Kingdom) |
| SK | Snooker |
| SK | Soundking (est. 1988; China) |
| SK | Slipknot (band) |
| SK | Slipknot |
| SK | Smurfit Kappa (various locations) |
| SK | Shaman King (Japanese cartoon) |
| SK | South Kitsap |
| SK | Sacramento Kings |
| SK | Stacy Keibler (WWE Diva) |
| SK | Special K (cereal) |
| SK | Sauerkraut |
| SK | Salman Khan (Indian actor) |
| SK | Soup Kitchen |
| SK | Stanley Kubrick (film director) |
| SK | Storekeeper (US Navy and Coast Guard rating) |
| SK | Streptokinase |
| SK | Sleater Kinney (band) |
| SK | Secret Key |
| SK | Scandinavian Airlines System |
| SK | Siesta Key (Florida) |
| SK | Surat Keputusan (Indonesian: decree) |
| SK | Søren Kierkegaard (philosopher) |
| SK | Spy Kids (movie) |
| SK | Sangguniang Kabataan (Youth Council of the Philippines) |
| SK | Silent Key (deceased amateur radio operator) |
| SK | Shadow Knight (Everquest) |
| SK | Silicon Knights |
| SK | Super-Kamiokande (Cerenkov detector in the Kamioka Mozumi mine in Japan) |
| SK | Straight Key (instrument used to generate morse code) |
| SK | Seborrheic Keratosis |
| SK | Schroet Kommando (gaming clan) |
| SK | Stana Katic (actress) |
| SK | South Kurdistan (Iraqi Kurdistan) |
| SK | Seto Kaiba (Yu-Gi-Oh! character) |
| SK | Skinfold Thickness |
| SK | Script Kiddie |
| SK | Service Knowledge |
| SK | Spot Kick (soccer) |
| SK | Shawn Kemp (NBA player) |
| SK | Stop Keying (TTY communication) |
| SK | Surrogate Key (relational database design) |
| SK | Samurai Katana |
| SK | Sealed Knot (UK re-enactment society) |
| SK | Sisak, Croatia (license plate) |
| SK | Stellar Kart (band) |
| SK | Sitekick (YTV.com game) |
| SK | Stranski-Krastanov (strain-induced island formation method) |
| SK | South Kanara (India district) |
| SK | Snap Kick |
| SK | Saxon Knights |
| SK | South Karana (Everquest) |
| SK | Step-Kid |
| SK | Star Kingdoms (game) |
| SK | Star Kingdoms (online game) |
| SK | Sanguniang Kabataan |
| SK | Seok Kyu (petrol company, South Korea) |
| SK | Skill Identifier |
| SK | Serpent Kingdoms (roleplaying games, Dungeons & Dragons) |
| SK | Standard Kaizen (methodology) |
| SK | Skull Kontrol (band) |
| SK | Saeder-Krupp Corporation |
| SK | Spreading sequence of user number k |
| SK | Spawn Kill(ing) (gaming) |
| SK | Schildknapenwerking (Dutch) |
| SK | Suicide Krew |
| SK | Saiid Kobeisy (Lebanese fashion designer) |