| Abbreviation | Definition |
|---|---|
| GLAA | Greater Lexington Apartment Association |
| GLACE | Gay Lesbian Association of Cuban Exiles |
| GLAR | Greater Lakes Association of REALTORS |
| GLAR | Greater Lansing Association of Realtors |
| GLAR | Greater Lewisville Association of REALTORS |
| GLAR | Greater Louisville Association of Realtors |
| GLBA | Great Lakes Beach Association |
| GLCA | Great Lakes Colleges Association |
| GLEA | German Law and Economics Association |
| GLEA | Glendale Law Enforcement Association |
| GLFA | Great Lakes Falconers Association |
| GLHBA | Great Lakes Herb Business Association (Michigan) |
| GLHBA | Greater Lansing Home Builders Association (Michigan) |
| GLKFCF | Great Lakes KFC Franchisee Association |
| GLMA | Gay and Lesbian Medical Association |
| GLMA | Georgia Library Media Association |
| GLMCA | Great Lakes Male Chorus Association |
| GLMRA | Great Lakes Multihull Racing Association |
| GLOA | Ghana Lotto Operators Association |
| GLSA | Global Law Students Association |