UPN was an American broadcast television network from 1995 to 2006.
UPN may also refer to:
Education National Pedagogic University (Mexico) (Spanish: Universidad Pedagógica Nacional), Mexico City, Mexico Private University of the North (Spanish: Universidad Privada del Norte), Trujillo, Peru Universities of National Development "Veteran", Indonesia University of National Development "Veteran" East Java, Surabaya University of National Development "Veteran" Jakarta, Jakarta University of National Development "Veteran" Yogyakarta, Sleman
Politics Navarrese People's Union (Spanish: Unión del Pueblo Navarro), a political party in Spain Nigerien Progressive Union (French: Union progressiste nigérienne), a former political party in Niger Unity Party of Nigeria, a now-defunct political party from the Nigerian Second Republic
Other uses Unique Pupil Number, held in the National Pupil Database in the U.K. Universal Product Number, a subset of the UPC barcode used for medical products Universal Principal Name, an object in Subject Alternative Name extension in X.509 certificate UPN (notation) or Reverse Polish notation, a mathematical notation in which operators follow their operands Upn, the symbol for the chemical element unpentnilium UPN, the abbreviation for the Union Pacific North Line, a Metra line in the Chicago metropolitan area Uruapan International Airport (IATA: UPN), Uruapan, Michoacán, Mexico Ústav pamäti národa, National Memory Institute of Slovakia User Principal Name, a Windows Active Directory username in an email address format