RFST
| Acronym | Definition |
|---|---|
| RFST | Resistance Flexibility and Strength Training |
| RFST | Rainier Foothills Swim Team (Enumclaw, WA) |
| RFST | Rat Forced Swimming Test |
| RFST | Reforestation Authorization and Expenses (IRS deduction) |
| RFST | Rapid Fermentation Sensitivity Test |