| Abbreviation | Definition |
|---|---|
| RYO | Rack Your Own |
| RYO | Redefine Your Own |
| RYO | The Ruri Yamashi Ovaki |
| RYP | Reaching Your Pinnacle |
| RYP | Renewing Your Passion |
| RYP | Richardson Young Professionals |
| RYP | Robert Young Pelton |
| RYP | Rochester Young Professionals |
| RYP | Roundtable Young Professionals |
| RYP | Rutland Young Professionals |
| RYP | Ryan Young Products |
| RYR | Red Yeast Rice |
| RYS | Raise Your Skirt |
| RYS | Read Your Screen |
| RYS | Redeem Your Self |
| RYS | Registered Yoga School |
| RYS | Reiter Young Stars |
| RYS | Rewind your Stream |
| RYS | Royal Yacht Squadron |
| RYSCA | Responsables y Suplentes de Centros de Acopio |