(redirected from Ryder Truck Rental LLP) Category filter: AcronymDefinition RTR Ready To Run RTR Rotor RTR Ready To Race RTR Right to Represent (staffing) RTR Rundfunk & Telekom Regulierungs Gmbh RTR Rubber Tramp Rendezvous (Arizona) RTR Ready to Roll RTR Receiver-Transmitter (US DoD signa...