CTR

CTR may stand for:
* Civic Type R, an automoblie manufactured by Honda
* Competitive trail riding, an equestrian sport
* Certified Tumor Registrar, a professional credential for cancer registrars that is granted by the National Cancer Registrars Association
* Counter, a mode of operation for block ciphers
* "Choose the right," a common Latter Day Saint saying, often found on a CTR ring
* Click-through rate, a measure of the success of an online advertising campaign
* Computing Tabulating Recording Corporation, a company headed by Thomas J. Watson that was renamed IBM in 1924
* "Crash Team Racing", a video game for the Sony PlayStation, developed by Naughty Dog
* Currency transaction report, a report about transactions that the Bank Secrecy Act requires banks to file with the Internal Revenue Service
* Nunn-Lugar Cooperative Threat Reduction, a US policy of providing support for decommissioning of Soviet weapon stockpiles
* Center for Traumatology and Rehabilitation, a Belgian rehabilitation center for people with spinal cord injury, head trauma, and amputation
* Ruf CTR, an automobile by Ruf Automobile of Germany
* Control Zone
* Contractor, commonly used in the US Federal Government, as contrasted to Employee
* CTR is the ICAO airline designator for Aerolineas Centauro, Mexico
* CTR is [http://www.teol.lu.se Centre for Theology and Religious Studies] at Lund University, Sweden
* Current Transfer Ratio, which is related to Optocouplers
* Current transfer rate
* CTR Cooperative Threat Reduction (Counter-Strike gaming clan) @ www.AnBservers.com
* Conservative Talk Radio