TRIO
| Acronym | Definition |
|---|---|
| TRIO | The Reason Is Obvious (hair salon; Chicago, IL) |
| TRIO | Transplant Recipients International Organization |
| TRIO | Telecommunications Research Institute of Ontario |
| TRIO | Technical Research for Information Operations (bd Systems) |
| TRIO | Tracking Radar Input Output System (USN ETR) |
| TRIO | TIPHON Remote InterOp |
| TRIO | [not an acronym] refers to a number (originally 3, now 7) of US federal programs to increase access to higher education for economically disadvantaged students |