PLN

PLN may refer to:

• Polish złoty, ISO 4217 currency code
• Liberal Nationalist Party (Spanish: Partido Liberal Nacionalista), a former political party of Nicaragua
• National Liberal Party (Panama) (Spanish: Partido Liberal Nacional), a political party of Panama
• National Liberation Party (Costa Rica) (Spanish: Partido Liberación Nacional), a political party of Costa Rica
• Pellston Regional Airport, IATA airport code, a commercial airport in Pellston, Michigan
• Perusahaan Listrik Negara (English: State Electricity Company), Indonesian government-owned electricity company
• Power line networking, the use of electrical power lines for data transmission
• Phospholamban or PLN, a protein that regulates calcium in muscle cells
• Pln, the abbreviation for the orchid genus Pleione
• .pln, a file extension used by SilkTest
• Probabilistic logic network
• Personal learning network
• Picton, Lennox and Nueva, a group of three Chilean islands near the southern extreme of South America, disputed by Argentina in the Beagle conflict