| PWRS | Poulton and Wyre Railway Society (UK) | Poulton and Wyre铁路协会（英国） |
| PWRS | Pre-Positioned War Reserve Stocks | 预先定位的战争储备库存 |
| PWRS | Prepositioned War Reserve Stock | 战争储备储备库存 |
| PWRS | Pacific Western Rail Systems (Surrey, British Columbia, Canada) | 太平洋西部铁路系统（加拿大不列颠哥伦比亚省萨里） |
| PWRS | Pacific Western Rail Systems (Surrey, BC, Canada model railroading reseller) | 太平洋西部铁路系统公司（Surrey，BC，加拿大铁路模型经销商） |