| A$AP | All Strive and Prosper 
| Others |
| AAP | Aam Aadmi Party
| Others |
| AAP | Abortion Access Project
| Others |
| AAP | Abusive accusive party
| Others |
| AAP | Academic Achievement Plan
| Others |
| AAP | Academic Achievement Program
| Others |
| AAP | Academic Advancement Program
| Others |
| AAP | Accredited ACH Professional
| Others |
| AAP | Accruals Accounting Project
| Others |
| AAP | Accusing Abusing Party
| Others |
| AAP | Active Accelerator Pedal
| Others |
| AAP | Active Action Plan
| Others |
| AAP | Acute Abdominal Problems
| Others |
| AAP | Adigun Azikiwe Polack
| Others |
| AAP | Adopt A Pet
| Others |
| AAP | Adoption Assistance Program
| Others |
| AAP | Adult Assistance Program
| Others |
| AAP | Advance Australia Party
| Others |
| AAP | Advance Auto Parts
| Others |
| AAP | Advanced Academic Programs
| Others |
| AAP | Advanced Adaptive Protocol
| Others |
| AAP | Advanced Analytics Platform
| Others |
| AAP | Advanced Automation
| Others |
| AAP | Affirmative Action Plan
| Others |
| AAP | Affirmative Action Program
| Others |
| AAP | Aft Attendant Panel
| Others |
| AAP | Aho Aho Power
| Others |
| AAP | Alanyl aminopeptidase, ANPEP, EC 3.4.11.2 (CD13)
| Others |
| AAP | Albay Ahayasie Parti
| Others |
| AAP | All About Publicity
| Others |
| AAP | All Access Productions
| Others |
| AAP | Allied Administrative Publication
| Others |
| AAP | Alternate Access Provider
| Others |
| AAP | Alternative Advertising Possibilities
| Others |
| AAP | Alternative Approval Procedures
| Others |
| AAP | Alumni Admissions Program
| Others |
| AAP | Always A Pleasure
| Others |
| AAP | am Aadmi Party
| Others |
| AAP | Ambient Absolute Pressure
| Others |
| AAP | American Academy of Paediatrics
| Others |
| AAP | American Academy of Pediatrics
| Others |
| AAP | American Academy of Pedodontics
| Others |
| AAP | American Academy of Peridontology
| Others |
| AAP | American Academy of Periodontists
| Others |
| AAP | American Academy of Periodontology
| Others |
| AAP | American Architecture Prize
| Others |
| AAP | American Asociation of Publishers
| Others |
| AAP | American Auto Parts
| Others |
| AAP | Amg Aerodynamics Package
| Others |
| AAP | Amicale des Automobiles Populaires
| Others |
| AAP | Anarchist Aadmi Party
| Others |
| AAP | Anarchy Arrogance Pollution
| Others |
| AAP | Andrau Airpark
| Others |
| AAP | Another A-A-P Project
| Others |
| AAP | Anti Anti Pokemon
| Others |
| AAP | Anti Aurat Party
| Others |
| AAP | Ao Agra Pagalkhana (Gujarati)
| Others |
| AAP | Apollo Advanced Playlist
| Others |
| AAP | Apollo Applications Program
| Others |
| AAP | Applications Access Point
| Others |
| AAP | Army Ammunition Plant
| Others |
| AAP | Army Apprenticeship Program
| Others |
| AAP | Army Automation Program
| Others |
| AAP | Artillery Ammunition Point
| Others |
| AAP | Arvind Alone Party
| Others |
| AAP | Ashirwad of Ahmed Patel
| Others |
| AAP | Asking Another Party
| Others |
| AAP | Asociacion Automotriz del Peru
| Others |
| AAP | Asset Allocation Plan
| Others |
| AAP | Assign Alternate Parent
| Others |
| AAP | Associacao Autocaravanista de Portugal
| Others |
| AAP | Associated Artists Productions
| Others |
| AAP | Association for Academic Psychiatry
| Others |
| AAP | Association for the Advancement of Psychology
| Others |
| AAP | Association of Academic Physiatrists
| Others |
| AAP | Association of Accountancy Practitioners
| Others |
| AAP | Association of American Physicians
| Others |
| AAP | Association of American Publishers
| Others |
| AAP | Asthma Action Plan
| Others |
| AAP | Athlete Acceleration Program
| Others |
| AAP | Atlanta Assembly Plant
| Others |
| AAP | Audi Approved Plus
| Others |
| AAP | Australian Associated Press
| Others |
| AAP | Auto Affiliate Program
| Others |
| AAP | Automobile Association of Pakistan
| Others |
| AAP | Automotive Aftermarket Professional
| Others |
| AAP | Automotive Assistance Programme
| Others |
| AAP | Automotive Association of the Philippines
| Others |
| AAP | Autonomous Airborne Platform
| Others |
| AAP | Auxiliary Acceleration Pump
| Others |
| AAP | Auxiliary Air Pump
| Others |