CAAT may refer to: Civil Aviation Authority of Thailand, an independent agency of the Thai government. Computer Assisted Auditing Techniques Techniques and computer programs that are developed to audit electronic data Centro de Apoyo Académico y Tutorías Academic Student Support Services & Tutoring Center Center for Alternatives to Animal Testing, a US research center Campaign Against Arms Trade, a British campaigning organisation The CAAT box in molecular genetics The Children's Air Ambulance Trust, a fundraising organisation for the Children's Air Ambulance Cornwall Air Ambulance Trust, a charity that maintains and runs the Cornwall air ambulance Combined Anti-Armor Team - Highly mobile Anti-Armor teams used by the United States Marine Corps Captive Air Amphibious Transporter, a DARPA tracked amphibious vehicle carrying containers from ship to shore A Community Awareness Action Team based in Westminster, Colorado Colleges of Applied Arts and Technology in the Canadian province of Ontario