IOSA
| Acronym | Definition |
|---|---|
| IOSA | Iata Operational Safety Audit |
| IOSA | Integrale Organisations und Strukturaufstellungen (German: Integral Organizational and Structural Constellations) |
| IOSA | Islands' Oil Spill Association (San Juan County, WA) |
| IOSA | Internet and Open Source in Archaeology |
| IOSA | International Oil Scouts Association |
| IOSA | International Organizational Studies Association |
| IOSA | Input/Output Sub-Assembly |