| Acronym | Definition |
|---|
| GBBC➣Great Backyard Bird Count |
| GBBC➣Greater Boston Business Council |
| GBBC➣Georgia BioBusiness Center |
| GBBC➣Grace Bible Baptist Church (various locations) |
| GBBC➣Garden Bloggers Book Club (blog) |
| GBBC➣Guécélard Basket Ball Club (Guécélard, France) |
| GBBC➣German Beer'n'Bike Cup |