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