- plastic hinge line
- plasticity
- Plateau problem
- plate constant method
- platform for remote sensing
- Plato graphs
- Platonic solids
- player
- Playfair axiom
- Playfair axiom
- Pleiades
- Plemeli-Privalov theorem
- Plemeli's formulas
- Plemeli-Sokhozki formula
- p-length of a p-solvalbe group
- PLK method
- PLK法
- p-local subgroup
- plot software
- plotter
- plumb line
- plurisubharmonic exhaustive function
- plurisubharmonic function
- plus-cupping property
- Pluto