PSNI
| Acronym | Definition |
|---|---|
| PSNI | Police Service of Northern Ireland (UK) |
| PSNI | Public Sector Net Investment |
| PSNI | Pharmaceutical Society of Northern Ireland |
| PSNI | Professional Systems Network, Inc. |
| PSNI | Partial Sciatic Nerve Injury |
| PSNI | Perceived Support Network Inventory (social support) |