| Acronym | Meaning |
| PA | Personal Assistant |
| PABX | Private Automatic Branch Exchange |
| PAN | Personal Area Network |
| PATD | Panic At The Disco (band) |
| PATT | Party All The Time |
| PAYE | Pay As You Earn |
| PAYG | Pay As You Go |
| PB | Personal Best |
| PBB | Pirate Bulletin Board |
| PBJ | Peanut Butter and Jelly |
| PBN | Paintball Nation |
| PBP | Please Be Patient |
| PBQ | Please Be Quiet |
| PBR | Pabst Blue Ribbon (beer) |
| PBS | Public Broadcasting Service |
| PBUH | Peace Be Upon Him |
| PBWY | Peace Be With You |
| PC | Politically Correct Personal Computer |
| PCB | Printed Circuit Board Please Come Back |
| PCI | Peripheral Component Interconnect |
| PCM | Please Call Me |
| PCMCIA | Personal Computer Memory Card International Association |
| PCMIA | Personal Computer Manufacturer Interface Adaptor |
| PCMR | PC Master Race |
| PD | Public Domain |
| PDA | Personal Digital Assistant |
| PDBAZ | Please Don’t Be A Zombie |
| PDEA | Public Display of Elderly Affection |
| PDF | Portable Document Format |
| PDG | Pretty Damn Good |
| PDOA | Public Display Of Affection |
| PDP | Pretty Darn Precious |
| PDQ | Pretty Damn Quick |
| PDT | Pacific Daylight Time |
| PE | Physical Education |
| PEBCAC | Problem Exists Between Chair And Computer |
| PEBCAK | Problem Exists Between Chair And Keyboard |
| PEBKAC | Problem Exists Between Keyboard And Chair |
| PEMDAS | Parenthesis, Exponents, Multiply, Divide, Add, Subtract |
| PEWS | Post Election Withdrawal Syndrome |
| PFA | Please Find Attached |
| PFB | Please Find Below |
| PFC | Private First Class |
| PFP | Picture For Proof |
| PG | Parental Guidance |
| PGA | Professional Golfers’ Association |
| PGDA | Pretty Goddamn Awesome |
| PGP | Pretty Good Privacy (encryption) |
| PHAT | Pretty Hot And Tempting |
| PHB | Pointy-Haired Boss (from Dilbert) |
| PIBE | Play It By Ear |
| PIC | Picture Partner In Crime |
| PICNIC | Problem In Chair Not In Computer |
| PIMPL | Pee In My Pants Laughing |
| PIN | Personal Identification Number |
| PIPA | Protect IP Act |
| PIQ | Person In Question |
| PIR | Parent In Room |
| PITME | Peace In the Middle East |
| PITR | Parent In The Room |
| PIU | Pump It Up |
| PK | Player Kill ( ) |
| PKB | Pot, Kettle, Black |
| PKI | Public Key Infrastructure |
| PKIT | Please Keep In Touch |
| PLA | People’s Liberation Army |
| PLC | Public Limited Company |
| PLD | Poor Life Decision |
| PLH | Peace, Love and Happiness |
| PLI | Potential Love Interest |
| PLL | Pretty Little Liar |
| PLMA | Please Leave Me Alone |
| PLMK | Please Let Me Know |
| PLOS | Parents Looking Over Shoulder |
| PLP | People Lazily Procrastinating |
| PLR | Private Label Rights |
| PLRN | Please Leave Right Now |
| PLU | People Like Us |
| PLUR | Peace, Love, Unity, and Respect |
| PM | Private Message Post Meridiem (afternoon) |
| PMA | Positive Mental Attitude |
| PMB | Private Message Box |
| PMC | Post Meal Cigarette |
| PMD | Put Me Down |
| PMF | Pardon My French |
| PMFJI | Pardon Me For Jumping In |
| PMIGBOM | Put Mind In Gear, Before Opening Mouth! |
| PMJI | Pardon My Jumping In |
| PMT | Pre-Menstrual Tension |
| PMYMHMMFSWGAD | Pardon Me, You Must Have Mistaken Me For Someone Who Gives A Damn |
| PNC | Point and Click Partner in Crime |
| PNL | Peace And Love |
| PNP | Party and Play |
| PNR | Passenger Name Record |
| PNW | Pacific North West |
| POA | Plan Of Action |
| POD | Passed Out Drunk |
| POF | Plenty of Fish (dating site) |
| POI | Point(s) Of Interest |
| POIDH | Pics Or It Didn’t Happen |
| POMO | Permanent Open Market Operations Post Modern A Group Of Native American People In California |
| PONR | Point Of No Return |
| POTC | Pirates Of The Carribean |
| POTD | Post Of The Day |
| POTO | Phantom Of The Opera |
| POTS | Parents Over The Shoulder (parents watching, I can’t really talk) |
| POTUS | President of the United States |
| POTW | Patient of the Week (House M.D.) |
| POTY | Post Of The Year |
| POV | Point Of View |
| POW | Prisioner of War |
| PPB | Parts Per Billion |
| PPC | Pay Per Click |
| PPD | Post Potter Depression |
| PPM | Parts Per Million |
| PPPW | Per Person, Per Week |
| PPS | Post-Post Script |
| PPU | Please Pick Up |
| PPV | Pay Per View |
| PQ | Party Quest (game) |
| PR | Public Relations |
| PRC | People’s Republic of China |
| PS | PhotoShop Play Station Post Script |
| PS & QS | Pints and Quarts Please and Thank Yous |
| PS2 | Play Station 2 |
| PS3 | Play Station 3 |
| PS4 | PlayStation 4 |
| PSA | Publice Service Announcement |
| PSB | Please See Below |
| PSH | Dismissive expression |
| PSI | Pounds per Square Inch (pressure) Greek letter |
| PSM | Personal Short Message |
| PSN | Playstation Network |
| PSP | PlayStation Portable |
| PSR | Pretty Standard, Really |
| PST | Please Send Tell Pacific Standard Time |
| PSTN | Public Switched Telephone Network |
| PSU | Power Supply Unit |
| PT | Phantasy Tour Physical Training |
| PTB | Powers That Be Pass The Buck Please Text Back |
| PTC | Popping The Collar |
| PTI | Pardon The Interruption |
| PTL | Praise The Lord |
| PTM | Please Tell Me |
| PTO | Paid Time Off |
| PTP | Pay To Play Peer To Peer |
| PTSD | Post Traumatic Stress Disorder |
| PTT | Push-To-Talk |
| PTW | Play To Win Professional Time Waster |
| PTZ | Pan-Tilt-Zoom |
| PUA | Pick Up Artist |
| PUG | Pick Up Group |
| PUV | Public Utility Vehicle |
| PV | Promotional Video |
| PVC | Polyvinyl Chloride, vinyl |
| PVE | Player versus Environment ( ) |
| PVM | Player Versus Monster |
| PVP | Player v Player |
| PVR | Personal Video Recorder |
| PWOR | Proceeding With Orders Recieved |
| PWOS | Parents Watching Over Shoulder |
| PWT | Poor White Trash |
| PX | Post Exchange Part Exchange |
| PYP | Play Your Position |
| PYT | Pretty Young Thing |