RTI stands for Right To Information. RTI is an act of the Parliament of India came into existence in the year 2005 that sets out some rules and procedures regarding citizens' right to information. As per the RTI act, every resident of India has self-rule of speech and expression.

Broadcasters

• Radiodiffusion Television Ivoirienne, state broadcaster of Ivory Coast
• Radio Taiwan International, a radio station in Taiwan
• Reti Televisive Italiane, an Italian broadcaster and subsidiary of Mediaset

Other businesses

• Research Triangle Institute, a not-for-profit research organization
• RTI Colombia, a television production company
• RTI International Metals, one of the world's largest titanium companies

In science and technology

In computing and telecommunications

• Run-time infrastructure (simulation)

In medicine

• Reproductive tract infection
• Respiratory tract infection
• Reverse-transcriptase inhibitor, a class of antiretroviral drug

Other uses in science and technology

• Ramp travel index, a measure of an off road vehicle articulation, ability to keep all wheels in contact with the ground over uneven terrain
• Rayleigh–Taylor instability, an instability of an interface between two fluids of different densities which occurs when the lighter fluid is pushing the heavier fluid
• Reflectance Transformation Imaging, a computational photographic method that can reveal hidden details about cultural or forensic artifacts
• Receiver Transmitter line card, in the MIDS radio communication standard
• Response Time Index, a measure of the thermal responsiveness of fire sprinklers
• Relative temperature index, UL plastic thermal-aging criteria

Other uses

• Response to Intervention, in education
• Right to Information Act, India
• Rti (Lučani), a village in Serbia
• Resistance to interrogation, a technique taught to soldiers