| GMB | Gabe Mike and Bryan 
| Others |
| GMB | Gambela, Ethiopia
| Others |
| GMB | Gastric Mucosal Barrier
| Others |
| GMB | General and Municipal Boilermakers
| Others |
| GMB | General Membership Branch
| Others |
| GMB | General Monitor Board
| Others |
| GMB | General Motors Belgium
| Others |
| GMB | General Motors Do Brasil
| Others |
| GMB | General Muhammadu Buhari
| Others |
| GMB | General Municipal and Boilermakers
| Others |
| GMB | General Municipal Boilermakers
| Others |
| GMB | General Music Berlin
| Others |
| GMB | Generator Mother Board
| Others |
| GMB | genetics and molecular
| Others |
| GMB | Genetics and Molecular Biology
| Others |
| GMB | Genocidal Murdering Bastard
| Others |
| GMB | Genomic Medicine Biorepository
| Others |
| GMB | Get Money Boys
| Others |
| GMB | Getting More Beer
| Others |
| GMB | Give Me Beats
| Others |
| GMB | Global Management Business
| Others |
| GMB | Global Medical Brigades
| Others |
| GMB | Global Memory Block
| Others |
| GMB | Global Motorparts Belgium
| Others |
| GMB | Glock Marksman Barrel
| Others |
| GMB | Go Media Backend
| Others |
| GMB | Gold Medal Bodies
| Others |
| GMB | Good Morning Beautiful
| Others |
| GMB | Good Morning Britain
| Others |
| GMB | Google My Business
| Others |
| GMB | Gordon Miller Buehrig
| Others |
| GMB | Gore Molested Babies
| Others |
| GMB | Graduate Master Builder
| Others |
| GMB | Grain Marketing Board
| Others |
| GMB | Grand Marquis Brougham
| Others |
| GMB | Grand Master Bowman
| Others |
| GMB | Grants Management Branch
| Others |
| GMB | Grants Management Breakfast
| Others |
| GMB | Greater Midwest Baseball
| Others |
| GMB | Green Man Book
| Others |
| GMB | Green My Business
| Others |
| GMB | Groningen Meaning Bank
| Others |
| GMB | Grow More Biz
| Others |
| GMB | Guided Modification and Branching
| Others |