IESA
| Acronym | Definition |
|---|---|
| IESA | Instituto de Estudios Superiores de Administración (Spanish: Institute of Higher Administration Studies; Venezuela) |
| IESA | Infogrames Entertainment SA |
| IESA | Interoperability for Enterprise Software and Applications (conference) |
| IESA | Indiana Education Savings Authority (Indianapolis, IN) |
| IESA | Institution of Engineers Singapore (est. 1966) |
| IESA | International Executive Security Association |
| IESA | Illinois Elementary Sports Association |
| IESA | Integrated Equiangular Spiral Antenna |