| Acronym | Definition |
|---|
| SIAA➣Simulation Industry Association of Australia (Lindfield, Australia) |
| SIAA➣Scottish Independent Advocacy Alliance (Edinburgh, Scotland, UK) |
| SIAA➣Strategic Independent Agents Alliance |
| SIAA➣She is an Astronomer (International Year of Astronomy project) |
| SIAA➣Societas Iuridica Antiliana et Arubana (Dutch) |
| SIAA➣Seed Industry Association of Australia, Limited |
| SIAA➣Science Industry Action Agenda (Australia) |