| Acronym | Definition |
|---|
| AHST➣Alaska-Hawaii Standard Time |
| AHST➣Autologous Hematopoietic Stem Cell Transplantation |
| AHST➣Anchor Handling Supply Tug (boats) |
| AHST➣Advanced Human Support Technology (NASA) |
| AHST➣Avoca-Hancock-Shelby-Tennant (school; Iowa) |
| AHST➣Ancient History Special Topic (Macquarie University; Australia) |