| 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) |