PWRS
| Acronym | Definition |
|---|---|
| PWRS | Pacific Western Rail Systems (Surrey, British Columbia, Canada) |
| PWRS | Pacific Western Rail Systems (Surrey, BC, Canada model railroading reseller) |
| PWRS | Prepositioned War Reserve Stock |
| PWRS | Porsche World Road Show |
| PWRS | Poulton and Wyre Railway Society (UK) |
| PWRS | Portsmouth Weather Records Service (est. 1976; Portsmouth, VA) |