PTN

PTN may refer to:

• {{lang|id|Perguruan tinggi negeri}}, the Indonesian word for "public university"
• Harry P. Williams Memorial Airport (IATA/FAA code PTN), Louisiana, U.S.
• Paramount Television Network (1948–1956), U.S.
• {{lang|pt|Partido Trabalhista Nacional}} (National Labour Party), a Brazilian party
• {{lang|pt|Partido Trabalhista Nacional}} (National Labor Party), former name of Podemos, a Brazilian party
• Pinguini Tattici Nucleari, an Italian indie band
• Pleiotrophin, a protein

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