| Acronym | Definition |
|---|
| OACT➣Office of the Actuary (Social Security) |
| OACT➣Office of Advanced Concepts and Technology |
| OACT➣Oakham Amateur Campus Theatre (Ryerson University; Canada) |
| OACT➣Outer Antenno-Cerebral Tract (neurology) |
| OACT➣Overarching Action Collaboration Team |
| OACT➣Overarching Action Coordination Team |