| Abbreviation | Definition |
|---|---|
| ABG | Authentic Brands Group |
| ABG | Avis Budget Group |
| ABGA | Anti basal ganglia antibodies |
| ABGA | Arterial Blood Gas Analysis |
| ABGB | Austin Beer Garden Brewing |
| ABGD | A Big Gigantic Difference |
| ABGD | Automatic Barcode Gap Discovery |
| ABGS | Aberdare Boys' Grammar School |
| ABGS | Arterial Blood Gases |
| ABGT | Advanced Biomass Gasification Technologies |
| ABGX | Abgx360s |
| ABH | A Barbadian Head |
| ABH | A Barbadians head |
| ABH | Above Beverly Hills |
| ABH | Accelerated Back Hopping |
| ABH | Accelerated Backhopping Https |
| ABH | Accelerated Backwards Hopping |
| ABH | actual bodily harm??? |
| ABH | Advanced Behavioral Health |
| ABH | Ajiro Burst of Happiness |