COA

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
 * Committee of Administrators (CoA), oversaw the reform in 2017 of the Board of Control for Cricket in India
 * 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 Process