RSYO
| Acronym | Definition |
|---|---|
| RSYO | Rockford Symphony Youth Orchestra (Rockford, IL) |
| RSYO | Reading Symphony Youth Orchestra (Reading, PA) |
| RSYO | Ridgefield Symphony Youth Orchestra (Connecticut) |
| RSYO | Risk Sermayesi Yatirim Ortakligi (Turkish: Venture Capital Investment and Partnership) |