RRSO
| Acronym | Definition |
|---|---|
| RRSO | Roczna Rzeczywista Stopa Oprocentowania (Polish: Real Annual Percentage Rate) |
| RRSO | Risk-Reducing Salpingo Oophorectomy |
| RRSO | Rzeczywistej Rocznej Stopy Oprocentowania (Polish: Actual Annual Interest Rate) |
| RRSO | Round Rock Symphony Orchestra (Round Rock, Texas) |
| RRSO | Rocky River Soccer Organization (Rocky River, OH) |