PDA (disambiguation)

A PDA is most commonly a Personal digital assistant, also known as a Personal data assistant, a mobile electronic device.

PDA may also refer to:

In science, medicine and technology:

• Patent ductus arteriosus, a heart defect
• Posterior descending artery, an alternative name for the posterior interventricular artery
• Photodiode array, a type of detector
• Polydiacetylenes, a family of conducting polymers
• Potato dextrose agar, a microbiological media for culturing yeast and fungus
• Pathological demand avoidance syndrome

In mathematics:

• Pitch detection algorithm, a mathematical method of finding the pitch of a signal
• Pushdown automaton, a type of abstract device in automata theory

In music:

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

In politics:

• Alternative Democratic Pole, a political party in Colombia (Polo Democrático Alternativo)
• Progressive Democratic Alliance, a past political party in British Columbia, Canada
• Progressive Democrats of America, a faction of the Democratic Party in the United States
• Party of Democratic Action, a Bosniak party in Bosnia-Herzegovina
• Aruban Democratic Party, an Aruban political party (Partido Democrático Arubano)

Organizations:

• Parenteral Drug Association, global provider of science, technology and regulatory information and education for the pharmaceutical and biopharmaceutical community
• Pharmacists' Defence Association, membership organization for pharmacists registered within the United Kingdom
• Peruvian Debate Association, organization in charge of inter-school debating in Peru. Holds the Semestral PDA Debate Competition twice every year
• Pinoy Dream Academy, the Philippine franchise of Endemol's Star Academy

Other uses:

• "PDA" (The Office), an episode from the 7th season of the U.S. version of The Office
• "PDA", an episode of the Adult Swim animated television series, Aqua Teen Hunger Force
• Past Doctor Adventures, a series of spin-off novels based on the long running BBC science fiction television series Doctor Who
• Public development authority, a type of government-owned corporation established by the laws of the U.S. state of Washington
• Private defense agency
• Pub Design Awards
• Public display of affection