PWSB
| Acronym | Definition |
|---|---|
| PWSB | Port Washington State Bank (est. 1899; Wisconsin) |
| PWSB | Pawtucket Water Supply Board (Rhode Island) |
| PWSB | Providence Water Supply Board (Rhode Island) |
| PWSB | Peace Wapiti School Board (Alberta, Canada) |
| PWSB | Peoples Westchester Savings Bank (Hawthorne, NY) |
| PWSB | Plane-Wave Second Born |