COA or CoA may refer to: Organizations Andorran Olympic Committee (Catalan: Comitè Olímpic Andorrà) Argentine Olympic Committee (Spanish: Comité Olímpico Argentino) Aruban Olympic Committee (Papiamento: Comité Olímpico Arubano) Canadian Osteopathic Association, a professional association of osteopathic physicians in Canada Chicago Options Associates, an American company that specializes in trading options and futures contracts Clowns of America International, an American organization that represents clowns Council on Accreditation wwww.COANet.org Council of Agriculture, agriculture-related institution in Taiwan Council of Architecture, an Indian governmental organization that registers architects in the country Community Oncology Alliance, an American non-profit that advocates for independent, community oncology providers and patients. Continental Airlines, by ICAO airline code Customs Officers' Association of New Zealand, a trade union COA Ontario, an association representing condominium owners in Canada Commission on Audit (Philippines), government agency Commission on audit, another name for supreme audit institutions Colleges College of Alameda, a college in Alameda, California College of The Albemarle, a college in Elizabeth City, North Carolina, US College of the Atlantic, a college in Bar Harbor, Maine, US Law and business Certificate of authenticity, a document demonstrating that an item is as claimed Chart of accounts, a categorized list of accounts used by a business Charter Ownership Agreement, the right to purchase season tickets to a particular seat at a stadium Court of Appeal (England and Wales), a court that reviews the decisions reached by lower courts Science, medicine and technology Care-of address, a temporary IP address assigned to a mobile internet device Certificate of analysis, a document certifying the identification and purity of a chemical a drug; see Drug reference standard Certified Ophthalmic Assistant, entry level assistant as certified by Joint Commission on Allied Health Personnel in Ophthalmology (IJCAHPO) Change of Authorization, a designation for RADIUS codes Ciphertext-only attack, where an attacker only has encrypted data to use in deciphering text Collaboration-oriented architecture, a type of computer system designed to help companies work with outside organizations Coarctation of the aorta, a congenital condition whereby a section of the aorta is narrowed Coenzyme A, a coenzyme used in processing fatty acids and citric acid Other uses Certificate of Authorization, used within the Federal Aviation Administration Coahuila, (ISO 3166 code MX-COA), a state in Mexico Coat of Arms, a unique heraldic design used to cover armor and identify its wearer Community Organization Award (COA), Boy Scouts of America Course of Action, in the Military Decision Making