| PSAC | Pedestrian Safety Advisory Committee 
| Others |
| PSAC | Pennsylvania State Athletic Conference
| Others |
| PSAC | Persian Social Athletic Club
| Others |
| PSAC | Plasma Science and Applications Committee
| Others |
| PSAC | President's Science Advisory Committee
| Others |
| PSAC | President's Science Advisory Council
| Others |
| PSAC | Presidential Scientific Advisory Committee
| Others |
| PSAC | Professional Staff Advisory Council
| Others |
| PSAC | Prospective Student Advisory Committee
| Others |
| PSAC | Public Safety Advisory Committee
| Others |
| PSAC | Public Safety Answering Center
| Others |
| PSAC | Public Sector Audit Sub-Committee
| Others |
| PSAC | Public Service Alliance of Canada
| Others |
| PSAC | Public Service Alliance of Canada; (Union of The DOMINION government employees)
| Others |
| PSAC | Pugets Sound Agricultural Company
| Others |