RTA

• Radio and Television Arts, program at Ryerson University, Toronto, Canada
• Radio Television Afghanistan
• RTA TV, an Afghan channel
• Radiodiffusion Télévision Algérienne
• Real time attack, a game speedrun

• Rapid thermal anneal, in semiconductor fabrication
• Real-time analyzer of audio spectrum
• Renal tubular acidosis, a medical condition
• Restricted to Adults
• Retrospective Think Aloud
• RTA clade of araneomorph spiders
• Retrolateral tibial apophysis, defining the RTA clade
• Rewriting Techniques and Applications, an annual computer-science conference

• Railway Tie Association
• Road traffic accident

• Regional Transportation Authority (Illinois), Chicago
• Regional Transportation Authority (Tennessee), Nashville
• Regional Transportation Agency of Central Maryland
• Regional Transit Authority of Southeast Michigan, Metro Detroit
• Central Puget Sound Regional Transit Authority
• New Orleans Regional Transit Authority
• South Florida Regional Transportation Authority

• Riverside Transit Agency, California
• San Luis Obispo Regional Transit Authority, California, US

• Greater Cleveland Regional Transit Authority, Ohio
• RTA Rapid Transit, the rail system operated by the above body
• Greater Dayton Regional Transit Authority, Ohio

• Former Roads & Traffic Authority, New South Wales, Australia

• Roads & Transport Authority (Dubai)
• Roads & Transport Authority (Sharjah)

• Ṛta or rita, a Hindu religious concept
• RTA (Niger), a village
• Ready-to-assemble furniture
• Regional trade agreement
• Rehabilitation Through the Arts
• Residential Tenancies Authority, Queensland, Australia
• Rio Tinto Aluminium
• Royal Thai Army
• Race Team Alliance
• RTA (album), by Rudra

• Rita (disambiguation)

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