| Acronym | Definition |
|---|
| GLLC➣Gulf Latin America Leaders Council (economic development) |
| GLLC➣Gay and Lesbian Leadership Council |
| GLLC➣Great Lakes Lotus Club (car club; Michigan) |
| GLLC➣Global Living Learning Community (various locations) |
| GLLC➣Great Lakes Land Cruisers (Michigan) |
| GLLC➣Group of Logic, Language and Computation (computer science; King's College; London, England, UK) |