| Abbreviation | Definition |
|---|---|
| ABT | Actual Bottom Time |
| ABT | Agarose Bead Technologies |
| ABT | Air Breathing Target |
| ABT | All Brothers Together |
| ABT | Allogeneic blood transfusion |
| ABT | Always Be Testing |
| ABT | American |
| ABT | American Ballet Theatre's |
| ABT | AND BUT and THEREFORE |
| ABT | And But Therefore |
| ABT | Any Bloody Thing |
| ABT | Apartment Building Temporary |
| ABT | Arena Budget Tech |
| ABT | Associated Beauty Therapists |
| ABT | Atomic Buffalo Treats |
| ABT | Atomic Buffalo Turd |
| ABT | Autologous Blood Transfusion |
| ABTA | Alberta Baton Twirling Association |
| ABTA | Album Before The Album |
| ABTA | American Bluefin Tuna Association |