The abbreviation DPD may stand for:
Computing
- Dead Peer Detection, an IPSec VPN feature
- Delegated Path Discovery, a public-key query method
- Densely packed decimal, a system of binary encoding for decimal digits
Engineering and technology
- Dew point depression
- Diffusion pressure deficit
- Digital pre-distortion, a subset of multidimensional digital pre-distortion that deals with linearization of non-orthogonal, non-linear systems.
- Digital product definition, a near-synonym of model-based definition
- Dissipative particle dynamics, a mesoscopic particle-based materials simulation technique
- Diver propulsion device, an underwater vehicle
Law
- EU Dangerous Preparations Directive
- EU Data Protection Directive
- Development Plan Document, in town and country planning in England and Wales
- Digital Phonorecord Delivery, a U.S. Copyright Office process for sound recording registration
- Denver Police Department, Colorado
- Detroit Police Department, Michigan
- Dallas Police Department, Texas
Mental disorders
- Dependent personality disorder, over-dependence on others
- Depersonalization-derealization disorder, feeling detached from one's self
- Depressive personality disorder, disorder with depressive features
Organic chemicals
- Dihydropyrimidine dehydrogenase, an enzyme
- N,N-diethyl-p-phenylenediamine, a phenylenediamine often used to determine chlorine in water
Politics
- Democratic Party of Germany (), liberal party in Germany
- Regional Representative Council (), a chamber of the Indonesian parliament
Other uses
- DPD, a subsidiary of international parcel-delivery business Geopost
- (Pan-Hispanic Dictionary of Doubts), Spanish lexicon
- Distributed participatory design
- Dorking Deepdene railway station, England (GBR code: DPD)