GLOS
| Acronym | Definition |
|---|---|
| GLOS | Gloucestershire (English County) |
| GLOS | Grand Lodge of Scotland (Scotland, UK) |
| GLOS | Great Lakes Observing System |
| GLOS | Graphics Language Object System |
| GLOS | Global Sea Level Observing System |
| GLOS | Gladstone Light Opera Society |
| GLOS | Guaranteed Level of Service |