ATP may refer to:
ATP-binding cassette transporters (ABC transporters) are members of a transport system superfamily that is one of the largest and is possibly one of the oldest families with representatives in all extant phyla from prokaryotes to humans.
The ATP World Tour Finals (also known as the Barclays ATP World Tour Finals for sponsorship reasons) is a professional men's tennis tournament played on indoor hard courts and is held annually in November at the O2 Arena in London, United Kingdom.
The ATP World Tour Masters 1000 is a series of nine tennis tournaments that are part of the Association of Tennis Professionals (ATP) tour, held annually throughout the year in Europe, North America and Asia.
The ATP Rankings, as defined by the Association of Tennis Professionals (ATP), are the "objective merit-based method used for determining qualification for entry and seeding in all tournaments for both (male) singles and doubles, except as modified for the ATP World Tour Finals (singles or doubles)." The rankings period is "the immediate past 52 weeks, except for: Barclays ATP World Tour Finals, singles and doubles, which is dropped on the Monday following the last ATP World Tour event of the following year; Futures Series tournaments that are only entered into the system on the second Monday following the tournament's week.
The ATP World Tour 500 series (previously known as the Grand Prix Super Series, ATP International Series Gold and the Championship Series) is the third highest tier of men's tennis tournament after the four Grand Slam tournaments, and the ATP World Tour Masters 1000.
ATP synthase (EC 22.214.171.124) is an important enzyme that creates the energy storage molecule adenosine triphosphate (ATP).
The ATP World Tour 250 Series is the newest series for tennis tournaments of the Association of Tennis Professionals (ATP) from the 2009 ATP World Tour.
The ATP Masters Series was a series of nine tennis tournaments that formed part of the men's Association of Tennis Professionals (ATP) tour, held annually throughout the year in Europe, North America.
The ATP World Tour is the top-level men's professional tennis circuit, administered by the Association of Tennis Professionals (ATP).