{{wiktionary}} '''PTA''' may refer to:
==Organizations== * Andalusia Technology Park ({{Langx|es|Parque Tecnológico de Andalucía|links=no}}), a science park in Málaga, Spain * Pakistan Telecommunication Authority, an agency in Pakistan responsible for communication networks. * Parent–teacher association, an organization of parents, teachers, and staff at a school * Passenger transport authority, a United Kingdom local government authority * Public Transport Authority (Denmark) * Public Transport Authority (Western Australia)
==Science and medicine== * 1,3,5-Triaza-7-phosphaadamantane, organic compound * Percutaneous transluminal angioplasty, surgical procedure * Peritonsillar abscess * Persistent truncus arteriosus, congenital heart disease * Pharmacy technical assistant * Phosphate acetyltransferase, enzyme * Phosphotungstic acid, acid catalyst and stain * Physical therapist assistant * Plasma thromboplastin antecedent, blood enzyme * Plasma transferred arc, coating technology * Post-traumatic amnesia, state of confusion following a traumatic brain injury * Pulsar timing array, technique to detect gravitational waves * Pure tone audiometry, hearing test * Purified terephthalic acid, organic compound used to make polyester
==Other uses== * Paul Thomas Anderson, American filmmaker * a possible mnemonic symbol for Peseta, the former Spanish currency * Postal code for Pietà, Malta * ''Planes, Trains and Automobiles'', a 1987 American film by John Hughes * Pohakuloa Training Area, a military training facility * Point of total assumption, a contract term * Port Talbot Parkway railway station in Wales (station code) * Preferential trading area, a type of trading bloc * Pretoria, the administrative and de facto capital of South Africa * Prevention of Terrorism Act, the name of several countries' Acts of Parliament * Program test authority, after a construction permit but before a broadcast license
==See also== * Ptah (disambiguation)
{{disambig}}