| IRDA | Independent Rear Drive Axle 
| Others |
| IRDA | Indian Regulatory Development Authority
| Others |
| IRDA | Indian Runner Duck Association
| Others |
| IRDA | Infra Red Data Architecture
| Others |
| IRDA | Infra Red Data Association
| Others |
| IRDA | Infra Red Developers Association
| Others |
| IRDA | Infrared Data Association
| Others |
| IRDA | Institutional Research and Data Analysis
| Others |
| IRDA | Insurance Regulation and Development Authority
| Others |
| IRDA | Insurance Regulatory & Development Authority of India
| Others |
| IRDA | Insurance Regulatory and Development Activity
| Others |
| IRDA | Insurance Regulatory and Development Authority
| Others |
| IRDA | Insurance Regulatory and Development Authority (India)
| Others |
| IRDA | Insurance Regulatory Development Authority
| Others |
| IRDA | Interim Resource Development Agreement
| Others |
| IRDA | Intermittent Rhythmic Delta Activity
| Others |
| IRDA | International Rally Driver Award
| Others |
| IRDA | International Rally Drivers Association
| Others |
| IRDA | International Reborn Doll Artists
| Others |
| IRDA | International Reconstruction and Development Association
| Others |
| IRDA | International Regulatory Development Authority
| Others |
| IRDA | Iskandar Regional Development Authority
| Others |