| Acronym | Definition |
|---|
| PL | Place |
| PL | Public Law |
| PL | Public Library |
| PL | Poland (top-level domain) |
| PL | Physical Layer |
| PL | Perl (File extension) |
| PL | Plus |
| PL | Plans |
| PL | Programming Language |
| PL | Power Level (Everquest) |
| PL | Power Line |
| PL | Play List |
| PL | Product Line (Engineering) |
| PL | Plain |
| PL | Plate |
| PL | Plug |
| PL | Procedural Language |
| PL | Production Line |
| PL | Private Label |
| PL | Power Law (spectral model) |
| PL | Private Line |
| PL | Professional Liability (insurance) |
| PL | Program Leader |
| PL | Planner (various organizations) |
| PL | Product Liability |
| PL | Project Leader |
| PL | Property Line |
| PL | Platz (German: plaza) |
| PL | Plymouth (postcode, United Kingdom) |
| PL | Pot Limit (poker) |
| PL | Pipeline |
| PL | polyester |
| PL | Plein (Dutch: square) |
| PL | Preferred Language |
| PL | Protection Level |
| PL | Power Locks |
| PL | Platoon |
| PL | Property Loss |
| PL | Plutonium |
| PL | Product Library |
| PL | Predatory Lending |
| PL | Prensa Libre (Spanish: Free Thought; newspaper) |
| PL | Predicate Logic |
| PL | Princess Leia (Star Wars character) |
| PL | Punch Line |
| PL | Presentation Layer |
| PL | Program Library |
| PL | Players League (defunct baseball league) |
| PL | Pheasant Launcher (hunting tool) |
| PL | Platoon Leader |
| PL | Pulse Length |
| PL | Pulse Laser |
| PL | Plastic Laminate (construction) |
| PL | Proof Like |
| PL | Proof-Like (coin's finish) |
| PL | Punch List (NASA) |
| PL | Partit Laburista (Maltese: Labor Party; political group) |
| PL | Program Lock |
| PL | Phantom Lancer (Defense of the Ancients) |
| PL | Pioneer League (baseball) |
| PL | Propagation Loss |
| PL | Porter's Lodge |
| PL | Prospecting License |
| PL | Pokémon League |
| PL | Pico Liter |
| PL | Political Linguistics (Conference) |
| PL | Precautionary Landing |
| PL | Protective Location |
| PL | Parity Low |
| PL | Pumper Ladder (firefighting vehicle) |
| PL | Pinkliner (eBay staff-poster) |
| PL | Platine Laser (French: compact disc) |
| PL | Preferential Looking Technique (Perception in Infants) |
| PL | Power Linearity (Agilent) |
| PL | Potato-Leaved (tomato plants) |
| PL | Product Loadout |
| PL | Patent Law Division |
| PL | Philosophically Libertarian |
| PL | Preservative Lubricant |
| PL | Pajarito Laboratory |
| PL | Polar Lepromatous (leprosy) |
| PL | Price/Provisioning List |
| PL | Parish Line Railroad |
| PL | Programmation Linéraire (French: Linear Programming) |
| PL | Posti Lokero (Finland) |
| PL | Pionculo List |
| PL | Packing List (transportation) |
| PL | Physics Laboratory |
| PL | Pig Latin |
| PL | Personal Leave |
| PL | Phase Line |
| PL | Photoluminescence |
| PL | Light Perception |
| PL | Parts List |
| PL | Patrol Leader |
| PL | Pattern Language |
| PL | Packet Loss |
| PL | Phospholipase |
| PL | Parental Leave |
| PL | Ice Pellets (weather) |
| PL | Phillips Laboratory |
| PL | Paul London (wrestler) |
| PL | Pancreatic Lipase |
| PL | Patrol Leader (Boy Scouts of America) |
| PL | Packet Link (AT&T) |
| PL | Penny Lane (Beatles song) |
| PL | Path Loss |
| PL | Paradise Lost (band) |
| PL | Parking Lot |
| PL | Pagelength (assembly language ASM51 assembler control) |
| PL | Pathetic Loser |
| PL | Pacific League (Japanese baseball) |
| PL | Percival Lowell |
| PL | Partido Liberal (Liberal Party - Brazil) |
| PL | Paternity Leave |
| PL | Paid Leave |
| PL | Philips Lighting |
| PL | Aeroperu (Peruvian Airline, IATA airline code) |