Encyclopedias, Almanacs, Transcripts, and Maps
- Psychology: Psychology of Religion
- Psychology: Psychotherapy and Religion
- Psychology: Schizoanalysis and Religion
- psychosomatic disorder
- pteridophyte
- Pterocliformes (Sandgrouse)
- Pu Yi, Henry
- Public Health Service
- Public Interest Group
- Public Lands Council
- public limited company
- public sector borrowing requirement
- Public Trust
- Puerto Rico
- puff adder
- Puffbirds (Bucconidae)
- Puget Sound/Georgia Basin International Task Force
- Pūjā: Buddhist Pūjā
- Pūjā: Hindu Pūjā
- Pulitzer Prize for fiction