| Acronym | Definition |
|---|
| RIAC➣Reliability Information Analysis Center |
| RIAC➣Rhode Island Airport Corporation |
| RIAC➣Railway Industry Advisory Committee (United Kingdom) |
| RIAC➣Rapid Integration and Acceptance Center (US Army) |
| RIAC➣Royal Irish Automobile Club |
| RIAC➣Roswell Industrial Air Center |
| RIAC➣Ricoh Imaging Americas Corporation (cameras) |
| RIAC➣Rule Induction Algorithm Based on Approximate Classification |
| RIAC➣Refugee and Immigrant Advisory Council Inc. (St. John's, Newfoundland and Labrador, Canada) |