PM
- .pm
- 12-hour clock
- Army Nuclear Power Program
- Bureau of Political-Military Affairs
- Carl Palmer
- Hans Widmer
- Makarov PM
- Military Police (Brazil)
- Minebea PM-9
- Molar concentration
- Naval Aircraft Factory PN
- P.M. Place Stores
- PKP class Pm36
- PM (BBC Radio 4)
- PM (newspaper)
- PM (radio program)
- PM Magazine
- PM Press
- PM md 96
- PM-38
- PM-43 and PM-68 mine
- PM-60 mine
- PM-63 RAK
- PM-79 mine
- PM-84 Glauberyt
- PM10
- PM3 (chemistry)
- Palm mute
- Particle mesh
- Particulate matter
- Passage Meditation
- Pat Maloney Sr.
- Pere Marquette Railway
- Performance management
- Perl module
- Petametre
- Phase modulation
- Philip Morris International
- Pickleball in Canada
- Picometre
- Plasma membrane
- Pm (space group)
- Pocket Mortys
- Polarization-maintaining optical fiber
- Polymyositis
- Poor metabolizer
- Popular Mechanics
- Portfolio manager
- Post-mortem
- Powder metallurgy
- Precision medicine
- Preventive maintenance
- Prime minister
- Primitive Methodist
- Principia Mathematica
- Private message
- Product manager
- Product marketing
- Program manager
- Project Mayhem
- Project manager
- Promethium
- Proton Mail
- Pyridoxamine
- Saint Pierre and Miquelon
- Toyota PM