| Acronym | Definition |
|---|
| GCLB➣Genesee County Land Bank (est. 2002; Michigan) |
| GCLB➣Gran Canaria-El Berriel (airport; Canary Islands) |
| GCLB➣Guam Contractors License Board (Tamuning, Guam) |
| GCLB➣Gerlev Center for Leg og Bevægelseskultur (Danish: Gerlev Center for Play and Dance; Denmark) |