CRT may refer to:
In computing:
* .crt file extension, in computing
* The C runtime library (part of the C standard library), in programming
* The C++ Curiously recurring template pattern, in programming.
In education:
* Criterion-referenced test, a type of exam
* a Substitute teacher (or casual relief teacher)
In electronics:
* Cathode ray tube, a type of display (or monitor)
In law:
* Charitable remainder trust
* Contractors Response Time, in service level agreements
In medicine:
* Capillary refill time, a medical sign
* Corneal Refractive Therapy, in optometrics
* Cognitive Retention Therapy, a dementia treatment
* Cardiac resynchronization therapy, a treatment for heart failure
* Certified Respiratory Therapist, a qualified practitioner of respiratory therapy
* Cranial radiation therapy
In science:
* Chinese Remainder Theorem, in mathematics
* Crater (constellation), in astronomy
* Crt (genetics), a gene cluster
In transport:
* The Cross River Tram, in London, England, UK
* The Chicago Rapid Transit Company (1924-1947) in Illinois, US
* The CRT Group, a defunct transport company in Australia
Other uses:
* Critical race theory, a school of thought about racism
* The Current reality tree (TOC) of Theory of Constraints, in process management
* Customer Response Team
* Classic Realist Text
* Combat Results Table, a feature of many recreational wargames.
* CRT®, Customer Research Technology Ltd , providers of automated survey software and services and IBM partners. Based in Coventry, West Midlands, UK. [1]
