| Acronym | Definition |
|---|
| GBAR➣Group Bar |
| GBAR➣Gravitational Behaviour of Antihydrogen at Rest (experiment) |
| GBAR➣Greater Boston Association of Realtors |
| GBAR➣Gorno-Badakhshan Autonomous Region (Tajikistan) |
| GBAR➣Gay Business Association of Rehoboth (Rehoboth Beach, DE) |