ADP

ADP may refer to:

Organizations and companies

 * Automatic Data Processing, global provider of integrated computing and business outsourcing
 * Aéroports de Paris, airport authority for the Parisian region in France
 * Aeropuertos del Perú, airport operator for airports in northern Peru
 * Alaska Democratic Party, the local branch of the Democratic Party in the state of Alaska
 * California Department of Alcohol and Drug Programs, Californian agency dealing with substance abuse prevention and treatment
 * Alpha Delta Phi (ΑΔΦ), a fraternal organization on college campuses
 * Alpha Delta Pi (ΑΔΠ), a sorority organization on college campuses
 * American Democracy Project (AASCU initiative), a project of the AASCU to promote understanding of civic engagement among college students
 * American Democracy Project (527 group in Florida)
 * Arab Democratic Party (Israel), a former political party in Israel
 * Arab Democratic Party (Lebanon), a political party in Lebanon
 * Association for the Development of Pakistan, a Boston-based non-profit organization
 * Azerbaijan Democratic Party

Computing

 * Android Dev Phone, a device sold by Google for Android developers
 * Automatic data processing online payroll software

People

 * ADP, a nickname for Alessandro Del Piero, Italian footballer
 * AdP, a nickname for Adrian Peterson, an American football player for the Minnesota Vikings.

Science and Technology

 * Adenosine diphosphate, an important molecule resulting from the transfer of energy from ATP
 * Ammonium dihydrogen phosphate, an optical crystal

Other

 * Andorran peseta, a former currency of Andorra
 * ADP, the IATA airport code for SLAF Anuradhapura, an airport in Sri Lanka
 * Actual deferral percentage, a 401(k) test for highly compensated employees
 * Austin Danger Powers, the full name of film character Austin Powers (character)
 * Antidepressant Pill, a medication taken to alleviate clinical depression or dysthymia
 * Air Displacement Plethysmography, a method to determine the percentage of body fat

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