HDP

HDP may refer to:

Politics

 * Free Democratic Party (Turkey) (Turkish: Hür Demokrat Parti), in Turkey; defunct
 * Hazara Democratic Party, in Pakistan
 * Peoples' Democratic Party (Turkey) (Turkish: Halkların Demokratik Partisi), in Turkey

Science and technology

 * Hemodialysis product
 * HD Photo, a graphics file format
 * Health Device Profile, a Bluetooth profile
 * Heme ligase, an enzyme
 * Hierarchical decision process
 * Hierarchical Dirichlet process, a stochastic process
 * High-density plasma, a type of plasma (physics)
 * Hurricane Destruction Potential
 * Hydrocarbon dew point
 * Hydroxypropyl distarch phosphate, a starch

Other uses

 * HDP (album), an album of Czech hip-hop group Prago Union
 * Hadapsar railway station, in India
 * Harness, Dickey & Pierce, an intellectual property law firm
 * Heritage Documentation Programs of the United States National Park Service
 * Historical Dictionary Project of the Hebrew Language
 * Hortonworks, an American software company