- PEKK
- Pekoe oolong tea
- pelage
- Pelagianism
- pelagic sea microbes
- pelagic sedimentation
- pelagic survey
- pelagic thresher
- Pela language
- Pele
- p-element
- p elementary group
- p-elementary group
- p-elementary subgroup
- peleoclimate record
- Peletier
- PELG
- Pelham Humfrey
- Pelham: orAdventures of a Gentleman
- Pelican Nebula
- pelicans
- Pell
- pellagra
- Pell constant
- Pelle Erobreren