| Acronym | Definition |
|---|
| DSP | Digital Signal Processing |
| DSP | Digital Signal Processor |
| DSP | Display |
| DSP | Delaware State Police |
| DSP | Delta Sigma Pi (business fraternity) |
| DSP | Defense Support Program (US DoD satellite system) |
| DSP | Digital Sound Processing |
| DSP | Disability Support Pension |
| DSP | Discrepancy |
| DSP | Dynamic Shift Program (Audi) |
| DSP | Disabled Students Program |
| DSP | Developer Studio Project (Microsoft file extension) |
| DSP | Domain Specific Part |
| DSP | Democratic Left Party (Turkey) |
| DSP | Deputy Superintendent of Police |
| DSP | Depository Services Program |
| DSP | Democratic Socialist Party (Australia) |
| DSP | Desmoplakin |
| DSP | Delta Sigma Phi (fraternity) |
| DSP | Demokratik Sol Parti (Turkish: Democratic Left Party) |
| DSP | Defense Standardization Program |
| DSP | Disodium Phosphate |
| DSP | Directory System Protocol |
| DSP | Distribution Point |
| DSP | Diritti Speciali di Prelievo (Italia: Special Drawing Rights; currency) |
| DSP | Designated Suppliers Program |
| DSP | Durgapur Steel Plant (India) |
| DSP | Dentin Sialoprotein |
| DSP | Detailed Scheduling and Planning |
| DSP | Digital Service Provider |
| DSP | Distinguished Speakers Program |
| DSP | Dominant Social Paradigm |
| DSP | Defense Satellite Program (US DoD) |
| DSP | Decessit Sine Prole (Latin: Died Without Issue) |
| DSP | Deep Space Probe |
| DSP | Digital System Processor |
| DSP | Dye Sublimation Printing |
| DSP | Diastasis Symphysis Pubis |
| DSP | Delivery Service Pack |
| DSP | Display System Protocol (packet switching) |
| DSP | Developer Service Provider |
| DSP | Decision Support Package |
| DSP | Decentralization Support Programme (Pakistan) |
| DSP | Direct Service Professional (social service) |
| DSP | Detailed Site Plan |
| DSP | Digital Speckle-Pattern Interferometry |
| DSP | Demand Supply Planning (various companies) |
| DSP | Drill Sergeant Program |
| DSP | Document Services for Printing |
| DSP | Director's Special |
| DSP | Direct Stock Plans |
| DSP | Departure Sequencing Program |
| DSP | Dilute Sulfuric Peroxide (dilute sulfuric acid and hydrogen peroxide mixture) |
| DSP | Dawnshroud Peaks (Everquest game) |
| DSP | Dalit Solidarity Peoples (human rights group) |
| DSP | Dynamic Support Program (IBM) |
| DSP | Daughters of Saint Paul (religious community) |
| DSP | Distinguished Service Professorship |
| DSP | Double Side Polishing (wafer, glass, metal) |
| DSP | Direct Support Platoon (US Army) |
| DSP | DoD Standardized Profile |
| DSP | Document Stratégique Pays (French: Country Strategy Paper) |
| DSP | Digital Signal Protocol |
| DSP | Drshnaps Productions (webcomic database) |
| DSP | Design Specification Package |
| DSP | District Superintendent Police |
| DSP | Designated Stock Point |
| DSP | Drift Start Position |
| DSP | Decompression Sickness Panel |
| DSP | Defense Sourcing Portfolio (est. 2008; US DoD) |
| DSP | Distributed Staff Program |
| DSP | Disaster Support Package (FEMA) |
| DSP | Designated Sender Protocol (email) |
| DSP | Division of the State Police |
| DSP | Dell Service Provide |
| DSP | Dedicated Sub-Path |
| DSP | Distribution Software Publishers |
| DSP | Dessertspoon/Dessertspoonful |
| DSP | Depot Spare Parts |
| DSP | Dealer Service Portal |
| DSP | Depot Storage Point |
| DSP | Dual Screen Playstation (Nintendo DS emulator) |
| DSP | Daikin Synchronised Power (Daikin Air Conditioners) |
| DSP | Digital Signature Signing Process |
| DSP | Dialogue Social dans les Postes (French: Social Dialogue in the Post) |
| DSP | Design Services Procedures |
| DSP | Devon and Somerset Police |
| DSP | Discovery Solutions Practice (LeClairRyan) |
| DSP | Dispute Settlement Procedure (World Trade Organization) |
| DSP | Demand Side Platform (Internet advertising) |
| DSP | Department of Student Preparation (University of Texas at San Antonio) |
| DSP | Dalton Strategic Partnership (investment management firm) |
| DSP | Driver Safety Program (various locations) |
| DSP | Division of Special Programs (various schools) |
| DSP | Dainippon Sumitomo Pharma (Japan) |