| Acronym | Definition |
|---|
| AOP | Aspect Oriented Programming |
| AOP | Association of Photographers |
| AOP | Alpha Omega Publications (Rock Rapids, IA) |
| AOP | Association of Optometrists (UK) |
| AOP | Annual Operating Plan |
| AOP | Appellation d'Origine Protégée (French & European protection of geographic products) |
| AOP | Australian Orangutan Project |
| AOP | Advanced Observing Program (Kitt Peak Observatory) |
| AOP | Advanced Oxidation Process(es) |
| AOP | Auto-Op (IRC channels) |
| AOP | Air Observation Post |
| AOP | Association of Online Professionals |
| AOP | Academy of the Pacific (Honolulu, HI high school) |
| AOP | Abnormal Operating Procedure |
| AOP | Advice of Payment |
| AOP | Areas of Performance |
| AOP | Allied Ordnance Publication |
| AOP | All One Polynomial |
| AOP | Asociación Odontológica Panameña |
| AOP | Anemia of Prematurity |
| AOP | air operations plan (US DoD) |
| AOP | All Other Perils (insurance term; flood, tornado, hurricane, etc.) |
| AOP | Apparent Optical Property |
| AOP | Adjusted Operating Profit |
| AOP | Area Of Probability |
| AOP | Attack on Principal (US Secret Service) |
| AOP | Advanced Optical Processor |
| AOP | Army Order of Precedence |
| AOP | Arrears Of Pay |
| AOP | Age of Puberty |
| AoP | ADSL Over Pots |
| AOP | Artillery Observation Plane |
| AOP | Asociacion Oceanica de Panama |
| AOP | American Oil Pension |
| AOP | Any One Period (insurance) |
| AOP | American Order of Pioneers |
| AOP | Alternative Operating Procedure |
| AOP | Asbestos Operating Plan |
| AOP | Appel d'Offres sur Performance |
| AOP | Attributable Operating Profit |
| AOP | Arithmetic Operator Change |
| AOP | Annual Operating Program |
| AOP | Approved Operating Plan |
| AOP | Additive Operational Product |
| AOP | Advanced Operational Planning |
| AOP | Accounting Operating Procedures |
| AOP | Airborne Optical Platform |
| AOP | Aircraft Operational Program |
| AOP | Air/Ocean Prediction |
| AOP | Avionics Operational Program |
| AOP | Analytical Operating Procedure |
| AOP | ATM Operation and Maintenance Processor |
| AOP | Phosphorescent Material-Coated (philatelic notation for stamps or paper) |
| AOP | Association of Oil Product Operations |