| 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 |