| Acronym | Definition |
|---|
| IERA➣International Employment Relations Association (London, UK) |
| IERA➣International Economic Relief Agency |
| IERA➣Institute for ESOH (Environmental, Safety & Occupational Health) Risk Analysis |
| IERA➣Iowa Enduro Riders Association |
| IERA➣Idiopathic Enlargement of the Right Atrium |
| IERA➣instrument, electronic, radio and avionics |