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PDA

Last updated November 08, 2025

PDA may refer to:

Science and technology

Parts departing aircraft, mid-air loss of screws, rivets, doors, etc.
Patron-driven acquisition, a mechanism for libraries to purchase books
Personal digital assistant, an early kind of mobile device
Photodiode array, a type of detector
Pitch detection algorithm, to find the pitch of a signal
Polydiacetylenes, a family of conducting polymers
Predictive analytics, a form of business analytics
Pushdown automaton, in automata theory

Biology and medicine

Pancreatic ductal adenocarcinoma, the main type of pancreatic cancer
Pathological demand avoidance, in psychology
Patent ductus arteriosus, a heart defect
Posterior descending artery, an artery
Potato dextrose agar, a microbiological media for culturing yeast and fungus

Music

"PDA" (Interpol song), a song by Interpol
"PDA", a song by the Backstreet Boys from This Is Us
"PDA", a song by Audio Adrenaline from Audio Adrenaline
"P.D.A. (We Just Don't Care)", a song by John Legend

Organizations

Parenteral Drug Association, a global pharmaceutical trade association
Pharmacists' Defence Association, UK
Peruvian Debate Association, for inter-school debating
Pinoy Dream Academy, the Philippine franchise of Endemol's Star Academy
Population and Community Development Association, Thailand
Private defense agency, an enterprise which would provide personal protection and military defense services to individuals
Professional Driver Association, of NASCAR drivers before the 1969 Talladega 500
Public development authority, government-owned corporations in Washington, US

Politics

Presidential Drawdown Authority, US presidential power to transfer defense articles and services in emergencies
Alternative Democratic Pole, a political party in Colombia (Polo Democrático Alternativo)
Progressive Democratic Alliance, a former political party in British Columbia, Canada
Progressive Democrats of America, a progressive political organization
Party of Democratic Action, a Bosniak party in Bosnia-Herzegovina
Movement of Democratic Action, a political party in Bosnia-Herzegovina (Pokret demokratske akcije)
Aruban Democratic Party, an Aruban political party (Partido Democrático Arubano)

Law and culture

Public display of affection, an act of physical intimacy in the view of others
Pregnancy Discrimination Act, US
"PDA" (The Office), an episode from the American television sitcom The Office
Past Doctor Adventures , spin-off novels from the BBC's Doctor Who
Pub Design Awards, UK
Professional Development Award, offered by the Scottish Qualification Authority

This disambiguation page lists articles associated with the title PDA.
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