Double Anal Penetration, a term used in the pornography industry.

Direct-Action Penetrator, an armed version of the UH-60 Black Hawk helicopter

Democratic Action Party, a Malaysian opposition political party

Digital audio player, device that stores and plays digital music files

DAP Technologies, a division of Roper Industries.

DAP Products, Inc., an American manufacturer of caulking materials.

Durham Athletic Park, a former minor league baseball park in Durham, North Carolina

German Workers' Party (Deutsche Arbeiterpartei)

Distributed Array Processor, the first commercial massively parallel computer

Download Accelerator Plus, an application created to speed downloads

Aerovias DAP, an airline based in Punta Arenas, Chile

Draw-A-Person Test, a psychological test to examine children's cognitive or emotional status

DAP Helicopteros, a Chilean helicopter operator

Daps or Plimsoll shoe

Distributed Art Publishers

Dap greeting, a form of greeting in which two people slap and grasp hands briefly

Dapping or sinking, a metalworking technique

Dog appeasing pheromone

German Workers' Party (Austria-Hungary) (Deutsche Arbeiterpartei)

Diammonium phosphate, used as a fertilizer and flame retardant

Directory Access Protocol, an implementation of the OSI model application layer

Dienst für Analyse und Prävention, Swiss internal security service