PJ
PJ may refer to:
- Pajamas, or PJs
People
- PJ (blogger), Pamela Jones, paralegal–journalist
- PJ (singer), Paris Jones (born 1990), American singer-songwriter
- PJ, Djahanshah Aghssa, drummer of Anti-Nowhere League
Arts and entertainment
- P.J. (film), a 1968 film starring George Peppard
- P.J. (Disney), Pete Junior, a Disney cartoon character
- P.J. (comics), a character in The Family Circus comic strip
Businesses
- PJ Media, originally known as Pajamas Media
- PJ Trailers, an American trailer manufacturer
- Peach John, a Japanese lingerie retailer with "pj" logo
Organisations
- PJ, Justicialist Party, (Partido Justicialista), a major Argentine political party
- PJ, Polícia Judiciária, Portuguese criminal investigation police
- PJ, Police Judiciaire, a higher branch of the French police services
Places
- Petaling Jaya, a Malaysian city
- Massie Wireless Station, Rhode Island, U.S.
Other uses
- PJ, Petajoule, a unit of energy
- pJ, Picojoule, a unit of energy
- PJ, code for United States Air Force Pararescue
- PJ, Personal jurisdiction, a court's jurisdiction over the parties to a lawsuit
- Air Saint-Pierre, (IATA code PJ)
- The PJ, The Pharmaceutical Journal