CTR

CTR may stand for:

Institutions

• Cryptologist (Collections), Rate designator for Signals Intelligence Collections & Analyzation, United States Navy
• Computing Tabulating Recording Corporation, a company that was renamed IBM in 1924
• Center for turbulence research, a research institute at Stanford University

In business

• Click-through rate, a measure of the success of an online advertising campaign
• Currency transaction report, a report about transactions that the Bank Secrecy Act requires banks to file with the Internal Revenue Service
• Contractor, commonly used in the US Federal Government, as contrasted to Employee

Cars

• Civic Type R, a car manufactured by Honda
• Ruf CTR, a car by Ruf Automobile of Germany

In technology and science

• Counter mode, a mode of operation for block ciphers
• X-ray crystal truncation rod, a technique to measure properties of crystal surfaces

In Medicine

• Cardio-thoracic ratio
• Clinical trials registry

Other

• The national rail station code for Chester railway station.
• Competitive trail riding, an equestrian sport
• Choose the right, a common Latter Day Saint saying, often found on a CTR ring
• Nunn-Lugar Cooperative Threat Reduction, a US policy of providing support for decommissioning of Soviet weapon stockpiles
• Control Zone, a controlled airspace zone, typically around airports
• CTR is the ICAO airline designator for Aerolíneas Centauro, Mexico
• Crash Team Racing, a 1999 video game for the Sony PlayStation, developed by Naughty Dog
• A Close Target Reconnaissance, a term used by ground forces to describe scouting in extremely close proximity to the target.