| AP |
Accounts Payable |
| AP & L |
Anteroposterior and lateral |
| APA |
Australian Postgraduate Award |
| APA |
Automatic Panel Alignment |
| APA |
Anti Polymer Antibody |
| APA |
Air Pathway Analysis |
| APA |
Alkaline Phosphatase Activity |
| APA |
Amateur Press Association |
| APA |
American Poultry Association |
| APA |
Association of Pet Behaviour Counsellors |
| APA |
Acolytes Protection Agency |
| APA |
Administrative Procedures Act |
| APA |
American Phonetic Alphabet |
| APA |
Association of Police Authorities |
| APA |
Aromatics Producers Association |
| APA |
American Psychological Association |
| APA |
American Payroll Association |
| APA |
Advance Pricing Agreement |
| APAC |
Arkansas Procurement Assistance Center |
| APAC |
Audio Publishers Association Conference |
| APACHE |
Acral Pseudolymphomatous Angiokeratoma Of Childhood |
| APAP |
Acetaminophen |
| APAP |
Army Privacy Act Program |
| APAR |
Affected Property Assessment Report |
| APARS |
Associate Planning And Review System |
| APAS |
Androgynous Peripheral Attachment System |
| APAS |
Automated Prior Authorization System |
| APB |
Anti Phase Boundary |
| APB |
Atrial premature beat |
| APB |
All Purpose Bicycle |
| APB |
Accounting Principles Board |
| APBA |
American Professional Baseball Association |
| APBC |
Advanced Pancreatic Biliary Adenocarcinoma |
| APBEL |
Atlantic Provinces Board of Examiners for Land Surveyors |
| APBI |
Accounting Principles Board Interpretations |
| APBNN |
Associated Press Broadcast News Handbook |
| APBO |
Accounting Principles Board Opinions |
| APBS |
Accounting Principles Board Statements |
| APC |
Agriculture Prices Commission |
| APC |
Advanced Process Control |
| APC |
Angled Polished Connector |
| APC |
Automatic Power Control |
| APC |
Advanced Power Calibration |
| APC |
Asynchronous Procedure Call |
| APC |
Aspirin, Phenacetin, And Caffeine |
| APC |
Atrial Premature Contractions |
| APC |
Adenomatous Polyposis Coli |
| APC |
Activated Protein C |
| APC |
Anaphase Promotion Complex |
| APC |
Antigen Presenting Cells |