SAIO
| Acronym | Definition |
|---|---|
| SAIO | Subacute Intestinal Obstruction |
| SAIO | Stanford American Indian Organization (est. 1970; Stanford University; California) |
| SAIO | South Africa Initiatives Office (University of Michigan) |
| SAIO | SIGINT Applications and Integration Office |
| SAIO | Senior Afloat Intelligence Officer |