OIAC
| Acronym | Definition |
|---|---|
| OIAC | Offshore Industry Advisory Committee (formerly Oil Industry Advisory Committee; UK) |
| OIAC | Oklahoma Indian Affairs Commission (Oklahoma City, OK) |
| OIAC | Oil Industry Advisory Committee (now Offshore Industry Advisory Committee; UK) |
| OIAC | Office of Information Assurance and Compliance (US Army) |
| OIAC | Olympic Identity and Accreditation Card |