Partido Ecológico Nacional (National Ecological Party), former name of the Brazilian political party Patriota (PATRI)PEN International, worldwide association of writersEnglish PEN, the founding centre of PEN InternationalPEN America, located in New York CityPEN Center USA, part of PEN AmericaPEN Canada, TorontoPEN Hong KongPEN-International, Postsecondary Education Network International, an international partnership of colleges for those with hearing impairmentPenang International Airport, Malaysia, IATA airport code PENPenarth railway station, Wales, station code PENPeruvian sol, ISO 4217 currency code PENPolyethylene naphthalate, a polyesterPrivate Enterprise Number, an organisation identifierProtective earth neutral in electrical earthing systems reference
