APS or Aps or aps or similar may refer to:

• Algeria Press Service, a news agency
• Arizona Public Service, an electric power company
• Australian Protective Service, an Australian Commonwealth law enforcement agency
• Australian Public Service, the federal civil service of the Commonwealth of Australia
• ASTRA Platform Services, now SES Platform Services

• Abbottabad Public School, in Pakistan
• Adarsh Public School, in India
• Alamogordo Public Schools, in New Mexico, U.S.
• Albuquerque Public Schools, in New Mexico, U.S.
• Allendale Public Schools, in Michigan, U.S.
• Arlington Public Schools, in Virginia, U.S.
• Associated Public Schools of Victoria, in Australia
• Atlanta Public Schools, in Georgia, U.S.
• Indian Army Public Schools

• Aborigines' Protection Society, a human rights group
• Alternative Press Syndicate, a network of countercultural newspapers and magazines
• American Philatelic Society, a stamp collecting foundation
• American Philosophical Society, an American scholarly organization
• American Physical Society, a not-for-profit membership organization
• American Physiological Society, a non-profit professional society
• American Phytopathological Society, an international scientific organization
• Armenian Professional Society, a membership organization
• Association for Psychological Science, an international non-profit organization
• Association for Psychosocial Studies, a British learned society
• Australasian Proteomics Society, a learned society
• Australian Psychological Society, a professional association

• Alba-la-Romaine, Ardèche, France, known as Aps until 1904
• Apsley railway station, England, station code APS

• Adenosine 5'-phosphosulfate, metabolic precursor to 3'-phosphoadenosine-5'-phosphosulfate
• Antiphospholipid syndrome, an autoimmune state
• Autoimmune polyendocrine syndrome, a rare disease
• Advanced Photon Source, a synchrotron X-ray source at Argonne National Laboratory
• Algebra of physical space, in physics
• Ammonium persulfate, in chemistry
• Apus, abbreviation Aps, a constellation
• Application Packaging Standard, for integrating application software
• Active-pixel sensor, an image sensor
• Advanced Photo System, a film format in photography
• Asynchronous Protocol Specification, or X.445, a telecommunications standard
• Atmospheric Plasma Spray, a thermal spraying technique
• Application support sublayer of the Zigbee specification
• Accessible Pedestrian Signal, a pedestrian crossing
• Alstom APS, electrical ground-level power supply for trams
• Auxiliary Propulsion System of the S-IVB launch vehicle

• APS underwater rifle, a Soviet firearm
• Active protection system, for vehicles against missile attacks
• Africa Partnership Station, a United States Navy maritime safety initiative
• Stechkin automatic pistol (Avtomaticheskiy Pistolet Stechkina)
• APS, a classification symbol United States Navy amphibious warfare ships

• Adult Protective Services, social services in the United States
• Advanced planning and scheduling, a manufacturing management process
• Annual Population Survey, a household survey in Great Britain
• Anpartsselskab (ApS), the Danish term for a limited liability company
• Average propensity to save, in Keynesian economics

• All pages with titles beginning with Aps
• All pages with titles beginning with APS
• All pages with titles beginning with ApS
• All pages with titles beginning with APs
• All pages with titles containing aps
• Apse (disambiguation)
• AP (disambiguation)