| Acronym | Sense | Language | Topics |
|---|---|---|---|
| IRA | Individual Retirement Account | In English | → Labour, labour economics → Finance |
| IRA | Infrared Astronomy | In English | → Serial publications, periodicals → Astronomy |
| IRA | Institut Régional d'Administration | In French | → Specialized or polytechnical colleges → Public administration, government |
| IRA | Insuffisance Rénale Aiguë | In French | → Pathology |
| IRA | Indemnité de Responsabilité Administrative | In French | → Personnel management → Public administration, government |
| IRA | Infection Respiratoire Aiguë | In French | → Chest diseases |