| Acronym | Definition |
|---|
| STOS➣Star Trek Original Series |
| STOS➣Standard Tender of Service |
| STOS➣Store String |
| STOS➣Shell Todd Oil Services (est. 1955; New Plymouth, New Zealand) |
| STOS➣Secure Trusted Operating System Consortium (George Washington University; Washington, DC) |
| STOS➣Standard Tender of Service (US General Services Administration) |
| STOS➣Software Technology Operating Solutions (New York) |
| STOS➣Spacecraft Test and Operations System |