See also Cat (disambiguation)

CAT may stand for:

• Centre for Advanced Technology
• Centre for Alternative Technology
• Cambridge Antibody Technology, the UK biotechnology company
• Canby Area Transit, a public transportation bus service in Canby, Oregon
• Capital Area Transit
• Capital Area Transit (Raleigh)
• Catalan language
• Catalonia
• Catalunya
• Catalyst
• Catalytic Converter
• Catamaran
• Catapult
• Cataract
• Catastrophe
• Catechism
• Caterpillar Inc.
• Center for Advanced Technologies
• Perth Central Area Transit, the free bus transit system that running in Perth City
• Central Autónoma de Trabajadores a trade union federation in Chile
• Central Autónoma de Trabalhadores a trade union federation in Brazil
• Central Artery-Tunnel
• Centre for Alternative Technology, an eco-centre in Wales
• Citizens Area Transit, public transportation by bus in Clark County, Nevada (Las Vegas)
• Civil Air Transport, the airline forerunner of Air America that was formed after World War II by General Claire Lee Chennault of the Flying Tigers
• Clear air turbulence, a term in aviation
• Clemson Area Transit
• Chloramphenicol acetyltransferase
• Cognitive Analytical Therapy
• Coital Alignment Technique
• Combat Application Tourniquet
• Common Admission Test, a graduate test in India, conducted by the Indian Institutes of Management or by Cochin University of Science and Technology
• Computer-adaptive test, a type of test that dynamically adapts to the testee's ability level
• Computer-aided tomography
• Computer Aided Transceiver, a class of software application and communications interface used for the control of radio transmitting and receiving equipment, especially amateur (ham) radios
• Computer-aided translation
• Computer-assisted translation, a form of computer software used to help human translators
• Computed axial tomography, a tomographical X-ray technique
• Cosmic Anisotropy Telescope, the first telescope to measure fine details in the fireball from the Big Bang
• Counter-assault Team, a tactical response team of the United States Secret Service