| Acronym | Definition |
|---|
| ISAN➣International Standard Audiovisual Number |
| ISAN➣Impuesto Sobre Automóviles Nuevos (Spanish: New Car Tax; Mexico) |
| ISAN➣International Seafarers' Assistance Network |
| ISAN➣Independent Street Arts Network (London, England, UK) |
| ISAN➣International Society for Autonomic Neuroscience (Malvern, Vic, Australia) |
| ISAN➣Integrity for Satellite Navigation |