RTA

RTA may refer to:

Media

• Radio and Television Arts, the undergraduate broadcasting program at Ryerson University in Toronto
• Radio Television Afghanistan, the state-owned broadcasting corporation of Afghanistan
  • RTA TV, a main Afghan TV channel

Science and technology

• Rapid thermal anneal, thermal process in semiconductor technology
• Real Time Analyzer for audio applications, such as analyzing sound
• Renal tubular acidosis, the inability of the kidney to properly acidfy the urine
• Restricted to Adults
• Retrolateral tibial apophysis, an anatomical feature of many male spiders
• Retrospective Think Aloud
• Round-trip average, see Round-trip delay time

Transit

• Railway Tie Association, a trade association serving the wood railroad tie industry
• Regional Transportation Authority (Illinois), serving Chicago, United States
• Regional Transportation Authority (Tennessee), serving Nashville, United States
• Regional Transportation Agency of Central Maryland, serving the Central Maryland counties of Anne Arundel, Howard, Prince George's, and the City of Laurel.
• Regional Transit Authority of Southeast Michigan, serving Metro Detroit, United States
• Central Puget Sound Regional Transit Authority, United States
• Greater Cleveland Regional Transit Authority, Ohio, United States
• Greater Dayton Regional Transit Authority, Ohio, United States
• New Orleans Regional Transit Authority, United States
• Riverside Transit Agency in Riverside County, California, United States
• Road traffic accident, a term for traffic collision
• Road Traffic Authority, a former authority in Victoria, Australia
• Roads & Traffic Authority, a former authority in New South Wales, Australia
• San Luis Obispo Regional Transit Authority in San Luis Obispo County, California, United States
• South Florida Regional Transportation Authority, United States
• Roads and Transport Authority (Dubai), serving Dubai, UAE
• Regional Transit Authorities in the Mass Transit Division of the Massachusetts Department of Transportation
• Real Time Attack, a synonym of Speedrun

Other uses

• Ready-to-assemble furniture
• Regional trade agreement
• Residential Tenancies Authority, Queensland, Australia
• Rewriting Techniques and Applications, the main international academic conference on rewriting, currently held annually
• Right to Acquire, which enables Housing Association tenants to purchase their homes
• Rio Tinto Aluminium
• Royal Thai Army, the land branch of Thailand's armed forces
• Race Team Alliance
• RTA (album), an album by the Singaporean band Rudra