RTC may refer to:

• Radiative transfer code, a numerical model of radiation in the atmosphere
• Rail tank car
• Rail traffic controller, a person who oversees the movement of trains and controls railway signals
• Rails-to-Trails Conservancy, a US organization to promote use of railroad rights-of-way as trails
• Railway Technical Centre, the British Rail research centre in Derby, England
• Rational Team Concert, an application lifecycle management tool from IBM
• Real-time computing
• Real-time communication is any mode of telecommunications in which all users can exchange information instantly or with negligible latency. In this context, the term "real-time" is synonymous with "live."
• Real-time clock, the clock that keeps the current time while a computer is turned off
• Real-time control
• Redmond Town Center
• Réseau de transport de la Capitale, the regional transportation commission for Quebec City
• Recruit training Command
• Reformed Theological College (Australia)
• Regional Technical College, a type of college in Ireland
• Regional Transportation Commission of Southern Nevada, a government agency that operates the RTC Transit, formerly called Citizens Area Transit (CAT), bus system
• Regional Transportation Commission of Washoe County, a public body responsible for public transit and roads in Northern Nevada
• Religious Technology Center, the corporate body that controls the intellectual property of the Church of Scientology
• Residential treatment center, a live-in health care facility for adolescents with severe psychological, behavioral, and/or substance abuse issues
• Resolution Trust Corporation, the government-owned company created to manage insolvent financial institutions during the US savings and loan crisis
• Responding to Conflict
• Response Time Compensation aka overdrive, a method to speed up LCD reaction time by changing voltage past the intended value for a short time
• Resurrection Through Carnage
• Reston Town Center
• Right To Carry, right to carry concealed weapon for self-defense
• Right to Censor, a World Wrestling Federation (WWF) parody of the Parents Television Council
• Road traffic collision formerly called Road Traffic Accident
• Rochester Telephone Company (disambiguation), one of several telephone companies in the United States
• Rosette terminal complex, a structure in vascular plants that produces cellulose
• Rotterdam Terror Corps, a Dutch gabber-group

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