PTA

PTA may refer to:

Organizations

• Andalusia Technology Park (Spanish: [Parque Tecnológico de Andalucía] Error: {{Lang}}: text has italic markup (help)), a science park in Málaga, Spain
• Pakistan Telecommunication Authority
• Parent-Teacher Association
• Passenger transport authority, a United Kingdom local government authority
• Public Transport Authority (Denmark)
• Public Transport Authority (Western Australia)

Science and medicine

• Percutaneous transluminal angioplasty, a surgical procedure
• Peritonsillar abscess
• Pharmacy Technical Assistant
• Physical Therapist Assistant
• Plasma thromboplastin antecedent, a blood enzyme
• Plasma Transferred Arc, a coating technology
• Post-traumatic amnesia, a state of confusion following a traumatic brain injury
• Pulsar timing array, a technique to detect gravitational waves
• Pure tone audiometry, a hearing test
• Purified terephthalic acid, an organic compound used to make polyester
• Phosphate acetyltransferase, an enzyme

Other uses

• Paul Thomas Anderson, American filmmaker
• 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
• 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
• Preferential Trade Agreement or preferential trade area
• Port Talbot Parkway railway station in Wales (station code)