ATP

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
 * Anti-tachycardia pacing, process similar to a pacemaker
 * Alberta Taciuk process, for extracting oil from shale, etc.
 * 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

 * Adenosine Tri-Phosphate (band), Japanese alternative rock/pop band
 * 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
 * Arbejdsmarkedets Tillægspension, a Danish pension
 * Allmän tilläggspension, a Swedish pension

Other uses

 * Around-the-post, a term used in the game of pickleball