PLN or pln or variation, may refer to:

Places

  • Pellston Regional Airport, Pellston, Michigan, USA; IATA airport code <code>PLN</code>
  • Picton, Lennox and Nueva, islands near the southern tip of South America

Organisations

  • Liberal Nationalist Party (Spanish: '), a former political party of Nicaragua
  • National Liberal Party (Panama) (Spanish: '), a political party of Panama
  • National Liberation Party (Costa Rica) (Spanish: '), a political party of Costa Rica
  • Perusahaan Listrik Negara, Indonesian government-owned electricity company

Science and technology

  • Phospholamban, a protein
  • Peripheral lymph node
  • Pln, the abbreviation for the orchid genus Pleione
  • .pln, a file extension used by SilkTest
  • Probabilistic logic network
  • Planetary nebula

Other uses

  • Polish złoty, currency by ISO 4217 currency code
  • Palenquero, ISO 639 language code <code>pln</code>
  • Personal learning network
  • Port letter and number, identifying fishing vessels

See also

  • P. L. N. Padfield (1932–2012), British author
  • Plan (disambiguation)