PL, P.L., Pl, or .pl may refer to:

Businesses and organizationsEdit

Government and politicalEdit

Sports leaguesEdit

Other businesses and organizationsEdit



  • PL Kyodan, a religious movement founded in Japan in the early 20th century
  • Patrologia Latina, a collection of Catholic writings published by Jacques-Paul Migne between 1841 and 1855

Science, technology, and mathematicsEdit


Computing and telecommunicationsEdit

File formatsEdit


  • Programming language
    • PL/C, an instructional dialect of the PL/I computer programming language, developed at Cornell University in the 1970s
    • PL/I, a computer programming language developed in the 1960s
    • PL/SQL, Oracle's procedural language extension (inception in 1995)
    • PL/pgSQL, PostgreSQL's procedural language extension (inception 1998)

Telecommunication and networkingEdit

  • .pl, country code top-level domain for Poland
  • PL tone, a kind of squelching of an audio signal
  • Packet loss, one of the three main error types encountered in digital communications
  • Path loss, in telecommunication engineering
  • Presentation layer, one of the seven layers in the OSI model of computer networking
  • Digital Private Line, another form of tone squelching


Other uses in science and technologyEdit

Other usesEdit