| SAIA | South African Insurance Association | 南非保险协会 |
| SAIA | South Australian Internet Association | 南澳大利亚互联网协会 |
| SAIA | Servicio de AnÁlisis e InformaciÓn AntinarcÓticos (Guatemala special police) | Servicio de AnÁlisis e InformaciÓn AntinarcÓticos (Guatemala special police) |
| SAIA | San Antonio International Airport (Texas) | 圣安东尼奥国际机场（德克萨斯州） |
| SAIA | Service Attitude Ingenuity And Achievement | 服务态度创新和成就 |