| Acronym | Definition |
|---|
| STK | Stock |
| STK | SIM (Subscriber Identity Module) Tool Kit |
| STK | SIM (Subscriber Identity Module) Toolkit |
| STK | Stanice Technické Kontroly (Czech: Technical Inspection Center) |
| STK | Soap Tool Kit |
| STK | Stack File |
| STK | Sim Tool Kit |
| STK | Storage Tek |
| STK | Satellite Tool Kit |
| STK | Statni Technicka Knihovna (Czech: The State Technical Library) |
| STK | Serine/Threonine Protein Kinase |
| STK | Storage Technology Corporation |
| STK | Shoot to Kill (gaming clan) |
| STK | Steve Kirsch (founder of Infoseek) |
| STK | Src-Type Kinase (gene) |
| STK | Single Track Kilometre (railway unit; UK) |
| STK | Standard Telefon og Kabel |
| STK | Sound and Tight Knotted (forest products industry) |
| STK | Stichbankeramik (stroke-ornamented ware, distinctive of central European archaeological cultures of the 6th millennium BC) |
