| Term | Full Form | Category |
|---|---|---|
| PWRA | Persons With Rheumatoid Arthritis | Others |
| PWRA | Peter Williams Riding Apparel | Others |
| PWRA | Potable Water Risk Assessment | Others |
| PWRA | Pre Work Risk Assessment | Others |
| PWRA | Prescribed Water Resources Area | Others |
| PWRA | Pressure Washing Resource Association | Others |
| PWRA | Private Wagon Registration Agreement | Others |
| PWRA | Professional Western Rodeo Association | Others |
| PWRA | Provincial Water Resources Authority | Others |