RTR may refer to:
Media Radiotelevisiun Svizra Rumantscha (previously Radio e Televisiun Rumantscha), a Swiss broadcasting company Reformed Theological Review, an Australian Protestant theological journal Return to Ravnica, a Magic the Gathering block Rome: Total Realism, a complete modification pack for the computer game Rome: Total War Rossiya 1 (previously RTR), a state-owned Russian television channel RTRFM, a not-for-profit, community radio station based in Perth, Western Australia
Military Royal Tank Regiment, of the British Army Royal Tasmania Regiment, of the Australian Army
Technology HP RTR, Reliable Transaction Router Real-time recovery from an IT infrastructure failure Remote transmission request on a CAN bus Unix RTR, a real-time operating system
Places Remedios T. Romualdez, Philippines Rochester railway station, Kent, England Russian Tea Room, New York City, US
Other uses Retracted tongue root, in speech Rent the Runway, a dress rental service RTR Vehicles, a Ford Mustang tuning shop Rigs-to-Reefs, conversion of oil rigs into artificial reefs Rubber Tramp Rendezvous, an annual gathering of van-dwellers in Arizona, US Third Republic Movement (), a defunct Polish political party