Education

• Army Public School, group of Army schools India under AWES
• APS Netherlands, or APS International, a Dutch educational non-governmental organization
• Abbottabad Public School and College
• Acting Police Sergeant
• Albuquerque Public Schools
• Assisted Places Scheme
• Associated Public Schools of Victoria
• Atlanta Public Schools

Places

• Anápolis, Goiás, Brazil, from its IATA airport code
• Apsley railway station, Apsley, England, from its National Rail code
• Alba-la-Romaine, Ardèche, France, known as Aps until 1904 and called Alba Augusta in Roman times

Science and medicine

• APS Therapy, a Microcurrent Electrical Therapy for pain relief
• adenosine 5´ phosphosulfate, a substrate used in pyrosequencing
• Advanced Photon Source, a synchrotron X-ray source at Argonne National Laboratory
• Algebra of Physical Space
• American Physical Society
• American Physiological Society
• American Phytopathological Society
• Ammonium Persulfate
• Antiphospholipid syndrome
• Apus (constellation) (standard astronomical abbreviation Aps)
• Association for Psychological Science
• Attending physician's statement
• Autoimmune polyendocrine syndrome

Computing and Technology

• Autoprotection switching, a computer networking system
• Active pixel sensor
• Active protection system, that shuts down the harddisc when there's risk for damage from mechanical shock. used on IBM/Lenovo Thinkpad laptops.
• Advanced Photo System
• Alt-preset-standard, a popular setting for the LAME mp3 audio software
• Assembly Programming System
• Asynchronous Protocol Specification, or X.445, a telecommunications standard

Weapons

• APS Stechkin, Russian machine pistol.
• APS Underwater Assault Rifle
• Active protection system, a system to protect tanks from anti-tank guided missiles

Transport

• Accessible Pedestrian Signal
• Acoustic Parking System
• Alimentation par Sol, a system for delivering third-rail power to trams
• Autopilot system
• US Navy Hull classification symbol for Transport Submarine

Organizations and firms

• Advanced Protection Services
• Adult Protective Services
• Alternative Press Syndicate, formerly Underground Press Syndicate
• American Philatelic Society, or their postage stamp authentication service
• American Philosophical Society
• American Public Television, formerly American Program Service
• APS Consulting Engineers
• Arizona Public Service, an electric power company
• Armenian Professional Society
• Army Public School, group of Army schools India under AWES
• Associated Professional Systems
• Association for Psychological Science
• Australian Psychological Society
• Australian Public Service
• Australian Federal Police Protective Service, formerly Australian Protective Service
• Austrian Peace Service

Miscellaneous

• Acting Police Sergeant
• Advanced Planning & Scheduling
• Argument from poverty of the stimulus, a theory of language acquisition in linguistics
• Advanced Photo System, a photographic film format
• ApS, a designation for Danish businesses
• Australian Pink Floyd Show, a tribute band of Pink Floyd
• Attending physician statement
• abbreviation for 'appearances', used in soccer statistics to show how many matches a player appeared in

See also

• apse