GBAR
| 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) |