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