AOP

AOP may refer to:

Organisations

 * Aama Odisha Party, political party, India
 * Association of Optometrists, a British trade association
 * American Opera Projects
 * Assembly of the Poor, an NGO network in Thailand
 * Association of Photographers, a British trade association
 * Australian Orangutan Project
 * Army of the Potomac, the major Union Army in the Eastern Theater of the American Civil War.

Science, mathematics and technology

 * An abbreviation of prebediolone acetate (21-acetoxypregnenolone)
 * Advanced oxidation process
 * Adverse outcome pathway, to adverse effects in biology
 * Agent-oriented programming
 * All one polynomial
 * Annals of Probability, a mathematics journal
 * Apnea of prematurity
 * Argument of periapsis, an orbital element of an object in a star's orbit (for sun orbit, 'Argument of perihelion')
 * Aspect-oriented programming
 * Attribute-oriented programming
 * AOP (IRC), AutoOp, an Internet Relay chat access level

Food

 * Appellation d'origine protégée (protected designation of origin), a quality label of the European Union
 * Appellation d'origine protégée, a food certification of Switzerland

Other

 * aop, advance online publication
 * AŌP, a Japanese idol group
 * Age of Persuasion, a Canadian radio programme
 * Authors of Pain, a professional wrestling tag team
 * Air observation post, artillery spotter aircraft
 * Apocalypse of Peter, a New Testament apocryphal text.
 * Annual Operations Plan, part of Sales and operations planning