DSP
- DSP (film)
- DSP Media
- Dairy Science Park
- Dark Sky Paradise
- Deathlike Silence Productions
- Decessit sine prole
- Defense Standardization Program
- Defense Support Program
- Delaware State Police
- Delta Sigma Phi
- Delta Sigma Pi
- Demand-side platform
- Democratic Left Party (Turkey)
- Democratic Socialist Party (Japan)
- Democratic Socialist Party (Prabodh Chandra)
- Democratic Socialist Perspective
- Deputy Superintendent of Police
- Designated Suppliers Program
- Desmoplakin
- Deutsche Schule Prag
- Deutsche Schule Pretoria
- Deutscher Spiele Preis
- Developmental social-pragmatic model
- Devi Sri Prasad
- Diarrhetic shellfish poisoning
- Digital signal processing
- Digital signal processor
- Direct support professional
- Disodium phosphate
- Disruptive solutions process
- Downstream processing
- Dual-specificity phosphatase
- Durgapur Steel Plant
- Dynamin Superfamily Protein
- German Socialist Party
- German State Party
- Internationale Deutsche Schule Paris
- Reconfigurable computing
- Sovereign Popular Democracy
- Special Presidential Division
- Yamaha DSP-1