| PP | Pariser Parr | - | Computer Acronyms(common) |
| PP | Polarization Propagator | - | Computer Acronyms(common) |
| PP | Plank Positive - Stupid, As In "thick As 2 Short Planks" | - | NASA |
| PP | Pumpkin Positive - A Penlight Shone Into The Patient's Mouth/ear Would Encounter A Brain So Small That The Whole Head Would Light Up | - | NASA |
| PP | Partial Pressure | - | Organizations |
| PP | Planning Package | - | Organizations |
| PP | Power Pole | - | Organizations |
| PP | Program Performance | - | Organizations |
| PP | Push-Pull | - | Organizations |
| PP | Partial Pressure | - | SMS Chat and Text |
| PP | People | - | ISO Country Codes |
| PP | Papua New Guinea (FIPS 10-4 Country Code) -Passage Point - Per Procurationem (Latin | - | Astronomy |
| PP | Parts Per | - | Business and Finance |
