PIAC
| Acronym | Definition |
|---|---|
| PIAC | Public Interest Advocacy Centre (Canada) |
| PIAC | Pension Investment Association of Canada |
| PIAC | Permanent International Altaistic Conference |
| PIAC | Project for Information Access and Connectivity (est. 1997) |
| PIAC | Printing Industry Advisory Committee (United Kingdom) |
| PIAC | Pakistan International Airlines Corporation |