| Acronym | Definition |
|---|
| APP | Application |
| APP | Approved |
| APP | Appendix |
| APP | Application (file name extension) |
| APP | Approach (aviation) |
| APP | Apparently |
| APP | Asbury Park Press (newspaper) |
| APP | Appointment |
| APP | Apparatus |
| APP | Appartement (French: Apartment) |
| APP | Appalachian |
| APP | Appropriation |
| APP | Atom Publishing Protocol (computing) |
| APP | Aluminum Precision Products (Santa Ana, CA) |
| APP | Amyloid Precursor Protein (neurology) |
| APP | Associated Press of Pakistan |
| APP | Atmospheric-Pressure Plasma |
| APP | Apprehend |
| APP | Asia Pulp and Paper (Singapore) |
| APP | Alianza Público Privada (Spanish: Public Private Alliance) |
| APP | Adult Probation and Parole (various locations) |
| APP | Accident Prevention Program (safety; various organizations) |
| APP | Applecare Protection Plan (Apple, Inc.) |
| APP | Advanced Practice Provider |
| APP | Annual Payment Plan |
| APP | Assets Protection Program |
| APP | Advanced Placement Program |
| APP | Alternating Pressure Pad |
| APP | Ambulante Psychiatrische Pflege (German: Outpatient Psychiatric Care) |
| APP | Aggregate Production Planning |
| APP | Adolescent Pregnancy Prevention (various organizations) |
| APP | Advanced Power Products (various locations) |
| APP | Accessible Parking Permit (Canada) |
| APP | Association of Professional Piercers |
| APP | Advanced Practice Professional |
| APP | Automatic Payment Program |
| APP | Abdominal Perfusion Pressure (cardiology) |
| APP | Academic Preparation Program (education) |
| APP | Anti-Poverty Program |
| APP | Atactic Polypropylene |
| APP | Amplifier Power Provisioning |
| APP | Applecare Protection Plan |
| APP | Application Defined Packet |
| APP | Accredited Presales Professional |
| APP | Advanced Page Processing |
| APP | Automatic Page Positioning |
| APP | Asynchronous Pluggable Protocol |
| APP | Assessing Pupils' Progress (formal teacher assessment scheme used in UK schools) |
| APP | Agence pour La Protection des Programmes (French: Protection Agency Programs) |
| APP | Annual Performance Plan |
| APP | Actinobacillus Pleuropneumoniae |
| APP | Acute Phase Protein |
| APP | Atelier de Pédagogie Personnalisée (French: Personalized Pedagogy Workshop) |
| APP | Associação de Professores de Português (Portugal) |
| APP | Art in Public Places |
| APP | American Public Power |
| APP | AppNexus Programmable Platform (digital advertising) |
| APP | American Payroll Association |
| APP | Accelerated Possession Procedure (legal procedure; UK) |
| APP | Association Past President |
| APP | A Posteriori Probability |
| APP | Asia Pacific Photo (Malaysia) |
| APP | Aquifer Protection Permit |
| APP | Alan Parson's Project (band) |
| APP | Automated Payment Plan (billing) |
| APP | Accident Prevention Plan (USACE safety management action plan) |
| APP | Allocation de Présence Parentale (French: Allocation of Parental Presence; family aid program) |
| APP | Alternative Payment Program |
| APP | Atomic Power Plant |
| APP | Apple Product Professional |
| APP | Approach Control Service (air navigation) |
| APP | Alaska Product Preference |
| APP | All People's Party |
| APP | Aphasies Primaires Progressives (French: Primary Progressive Aphasia; brain disease) |
| APP | Academic Program Profile (Arizona State University) |
| APP | Appellatus (Latin: Called, Codices and Manuscripts) |
| APP | Adjusted Peak Performance (computing speed) |
| APP | Approach Center (aviation) |
| APP | Air Parcel Post |
| APP | Accredited Purchasing Practitioner |
| APP | American Precision Prototyping |
| APP | Absolute Password Protector (software) |
| APP | Annual Procurement Plan |
| APP | American Presence Post (smaller version of a US consulate) |
| APP | Agence Photo Presse (French: Press Photo Agency) |
| APP | Auxiliary Power Plant |
| APP | Applications Portability Profile |
| APP | Afghan Project Partner |
| APP | Association for Portland Progress |
| APP | Application Marker |
| APP | Apple Pie Parser |
| APP | Advance Procurement Plan |
| APP | Agency Peculiar Property (military) |
| APP | Average Payment per Physician |
| APP | Attacking Poverty Program |
| APP | Advanced Procurement Plan |
| APP | Agent Partner Program |
| APP | Adoption Pay Period (UK) |
| APP | Application Programming Platform |
| APP | Aegean Park Press |
| APP | Asset Protection Planner |
| APP | American Patriot Party (Jeffersonian philosophy) |
| APP | Administrative Policy & Procedure |
| APP | Action Pédagogique Pilote (French: Pedagogical Action Pilot) |
| APP | Associative Parallel Processor |
| APP | ATM Peer-to-Peer |
| APP | Agricultural Prospective Plan |
| APP | Aggregate Project Plan |
| APP | Agricultural Pricing Policy |
| APP | Alliance Populaire et Progressiste (French: Popular Progress Alliance, Mauritania) |
| APP | Advance Placement Physics |
| APP | Amicale Police Patrimoine (French: Friendly Police Heritage) |
| APP | Army Procurement Procedure |
| APP | Analog Pre-Processor |
| APP | Acoustic Performance Prediction |
| APP | Attached Payload Pallet |
| APP | Alabama Partnership for Progress |
| APP | Aviation Plans Policy (USMC) |
| APP | Association of Purchasing Professionals |
| APP | Automated Picture Planning |
| APP | Approved Property Program |
| APP | Automated Post-Post |
| APP | Access Processing Parameters |
| APP | FAA Airport Planning and Programming Office |
| APP | Acoustic Phase Plate |
| APP | Allied Procedural Publications |
| APP | Active Pointer Present |
| APP | Auxiliary Pump Pressure |
| APP | Acoustic Performance Program |
| APP | Acoustic Prediction Program |
