| PPST | Patriotic Peoples Science and Technology 
| Others |
| PPST | Patriotic Peoples, Science, And Technology
| Others |
| PPST | Paver Placed Surface Treatment
| Others |
| PPST | Peace Process Steering Team
| Others |
| PPST | Pediatric Pain Screening Tool
| Others |
| PPST | Philippine Professional Standards for Teachers
| Others |
| PPST | Pipeline Pipe Sewer Technology
| Others |
| PPST | Pleasure Play Sex Toys
| Others |
| PPST | Political Power and Social Theory
| Others |
| PPST | Poornaprajna Samshodhana Trust
| Others |
| PPST | PostScript Printer Speed Test
| Others |
| PPST | Poulsbo Piranha Swim Team
| Others |
| PPST | Praxis Professional Skills Tests
| Others |
| PPST | Pre And Post Stimulus Time
| Others |
| PPST | Pre Planned Science Timeline
| Others |
| PPST | Pre Professional Skills Test
| Others |
| PPST | Pre Professional Skills Tests
| Others |
| PPST | Princeton Piranhas Swim Team
| Others |
| PPST | Program in Plasma Science and Technology
| Others |
| PPST | Protection du potentiel scientifique et technique
| Others |
| PPST | Psycho Physiological Stress Test
| Others |
| PPST | Pulsed Power Science and Technology
| Others |