PBSO
| Acronym | Definition |
|---|---|
| PBSO | Palm Beach County Sheriff's Office (Florida) |
| PBSO | Perinatal Bereavement Services Ontario (est. 1992; Canada) |
| PBSO | Peace Building Support Office (UN) |
| PBSO | Partial Buffer Sharing with Overwriting |
| PBSO | Progressive Black Student Organization (University of North Texas) |