APC
- A Perfect Circle
- A.P.C.
- APC (magazine)
- APC Family
- APC III
- APC Superfamily
- APC by Schneider Electric
- APC-7 connector
- APCR (disambiguation)
- APCS (disambiguation)
- Activated protein C
- Adaptive predictive coding
- Adenomatous polyposis coli
- Advanced process control
- African Paralympic Committee
- African People's Convention
- African, Caribbean and Pacific Group of States
- Alianza Popular Conservadora
- Alien Property Custodian
- Alkali Pozzolan Cement
- All People's Congress
- All Progressives Congress
- Allophycocyanin
- Allylpalladium chloride dimer
- Alternativa Popular Canaria
- Alternative PHP Cache
- Ambulatory Payment Classification
- American Pie Council
- American Plastics Council
- Americas Paralympic Committee
- Ammonium perchlorate
- Anadarko Petroleum
- Anaphase-promoting complex
- Animal Procedures Committee
- Anti-Poverty Committee
- Antigen-presenting cell
- Apc, Hungary
- Apocalypse Production Crew
- Arab Potash Company
- Argon plasma coagulation
- Armed Proletarians for Communism
- Armour-piercing capped
- Armoured personnel carrier
- Army Cadet Force
- Arrangers' Publishing Company
- Article processing charge
- Asia Pacific College
- Asian Paralympic Committee
- Associated Presbyterian Churches
- Association for Progressive Communications
- Association of Professional Chaplains
- Astroparticle and Cosmology Laboratory
- Asynchronous procedure call
- Atari Punk Console
- Atrial premature complexes
- Attoparsec
- Australian Paralympic Committee
- Australian Pickleball Championships
- Australian Plant Census
- Australian Polling Council
- Australian Provincial Championship
- Automatic Performance Control
- Average propensity to consume
- C1 control code
- Levantine Arabic
- List of auxiliaries of the United States Navy
- List of auxiliaries of the United States Navy
- Napa County Airport
- North Levantine Arabic
- Optical fiber connector
- Patriotic Alliance for Change
- Phenacetin
- VIA APC
- Vincent's APC