ATP may refer to:

Science, technology and biology

  • Adenosine triphosphate, an organic chemical used for driving biological processes
  • ATPase, any enzyme that makes use of adenosine triphosphate
  • Advanced Technology Program, US government program
  • Alberta Taciuk process, for extracting oil from shale, etc.
  • Anti-tachycardia pacing, process similar to a pacemaker
  • Assistive Technology Practitioner - Rehabilitation Engineering and Assistive Technology Society of North America (RESNA)
  • AT Protocol, an open communications protocol intended for decentralized social networking services
  • Automated theorem proving, method of proving mathematical theorems by computer programs

Companies and organizations

  • Association of Tennis Professionals, men's professional tennis governing body
  • ATP Tour
  • American Technical Publishers, employee-owned publishing company
  • Armenia Tree Project, non-profit organization
  • Association for Transpersonal Psychology
  • ATP architects engineers, architecture- and engineering office for integrated design
  • ATP Oil and Gas, defunct US energy company

Entertainment, arts and media

  • All Tomorrow's Parties (festival), UK organisation
  • ATP Recordings, record label
  • Alberta Theatre Projects, professional, not-for-profit, Canadian theatre company
  • Associated Talking Pictures, former name of Ealing Studios, a television and film production company

Transport

  • British Aerospace ATP, airliner
  • Airline transport pilot license
  • ATP Flight School, US
  • ATP (treaty), UN treaty that establishes standards for the international transport of perishable food
  • Aitape Airport, Papua New Guinea, IATA code
  • Anti-trespass panels, meant to deter pedestrians from walking on or adjacent to train tracks
  • Automatic train protection, system installed in trains to prevent collisions through driver error
  • Automatic Train Protection (United Kingdom), method of beacon based railway cab signalling

Economics

  • Available-to-promise, responding to customer order enquiries
  • , a Danish pension
  • , a Swedish pension

Other uses

  • Around-the-post, a term used in the game of pickleball
  • Sniper Advanced Targeting Pod, created by Lockheed Martin