| GLOSS | Gay and Lesbian Organized Sports Society 
| Others |
| GLOSS | Girls Loving OurSelves Successfully She
| Others |
| GLOSS | Global Language Online Support System
| Others |
| GLOSS | Global Sea Level Observing System
| Others |
| GLOSS | Great Lakes Outlaw Sprint Series
| Others |
| GLOSS | Grit Leadership Opportunities Service and Self
| Others |
| GLOSS | Grit Leadership Opportunity Self and Service
| Others |
| GLOSS | Grit Leadership Opportunity Service Self
| Others |