ISAN
| 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 |