| Acronym | Definition |
|---|
| GLBA | Gramm-Leach-Bliley Act of 1999 (Financial Modernization Act of 1999) |
| GLBA | Glacier Bay National Park and Preserve (US National Park Service) |
| GLBA | Glacier Bay National Park & Preserve (National Park Service) |
| GLBA | Gay and Lesbian Business Association |
| GLBA | Great Lakes Booksellers Association |
| GLBA | Great Lakes Book Awards (Great Lakes Booksellers Association) |
| GLBA | Gibsons Landing Business Association (Canada) |
| GLBA | Gay Lesbian Bisexual Alliance |
| GLBA | Greater Lumberton Business Association (New Jersey) |
| GLBA | Great Lakes Basketball Association |
| GLBA | Great Lakes Beach Association |
| GLBA | Gay Lesbian Bisexual and Allies |
| GLBA | Gay Lesbian and Bisexual Alliance |
| GLBA | Gay, Lesbian, Bisexual Association |
| GLBA | Great Lakes Buckskin Association |
| GLBA | Gay, Lesbian and Bi-Affectionate Association |