| Acronym | Definition |
|---|
| DSI➣Decision Sciences Institute |
| DSI➣DYWIDAG Systems International |
| DSI➣Deep Sky Imager (astrophotography) |
| DSI➣Department of Special Investigation (Thailand) |
| DSI➣Data Systems, Inc. (various locations) |
| DSI➣Directeur des Systèmes d'Information (French: Director of Information Systems; various organizations) |
| DSI➣Direct Spark Ignition (propane fired appliances) |
| DSI➣Design Services, Inc. (various locations) |
| DSI➣Document Solutions, Inc. |
| DSI➣Destination Software, Inc. (est. 2001; Moorestown, NJ) |
| DSI➣Direction des Systèmes d'Information (French: Directorate of Information Systems; France and Switzerland) |
| DSI➣Daiichi Sankyo, Inc. (Parsippany, NJ) |
| DSI➣Dry Sorbent Injection |
| DSI➣Dipartimento di Scienze dell'Informazione (Italian university) |
| DSI➣Data Service & Information (various companies) |
| DSI➣Data Science Initiative (various schools) |
| DSI➣Digital Systems International Inc. |
| DSI➣Disease Severity Index |
| DSI➣Direct Steam Injection |
| DSI➣Dynamic Skeleton Interface (CORBA server-side API) |
| DSI➣Drive Select Interface |
| DSI➣Dual Sequential Ignition |
| DSI➣Data Search Information |
| DSI➣Digital Signal Interface |
| DSI➣Data Server Interface |
| DSI➣Data Stream Interface over Ip |
| DSI➣Dual Stage Intake |
| DSI➣Dynamic Systems Initiative |
| DSI➣Desktop Statistics Integration |
| DSI➣Development Studies Institute |
| DSI➣Drought Severity Index |
| DSI➣Dynamic Systems Initiative (Microsoft) |
| DSI➣Dutch Securities Institute |
| DSI➣Department of Safety and Inspections (Minnesota) |
| DSI➣Défense et Sécurité Internationale (French: Defense and International Security; publication) |
| DSI➣Data Storage Institute |
| DSI➣Distribution Solutions, Inc. (Plymouth, MA) |
| DSI➣Dynamic Solutions International (Englewood, CO) |
| DSI➣Detailed Site Investigation (land development; various locations) |
| DSI➣Data Systems International |
| DSI➣Deutsche Securities, Inc. (Deutsche Bank; Germany) |
| DSI➣Dual Sensory Impairment(s) |
| DSI➣Dominican Studies Institute (City University of New York) |
| DSI➣De Samvirkende Invalideorganisationer (Danish: Federation of Organizations of Disabled People) |
| DSI➣Distribution Services Industriels (French: Industrial Distribution Services) |
| DSI➣Dysfunction in Sensory Integration |
| DSI➣Distributed Storage Infrastructure |
| DSI➣Dienst Speciale Interventies (Dutch counterterrorism unit) |
| DSI➣Development Services International (various organizations) |
| DSI➣Digital Spot Imaging (diagnostic technique) |
| DSI➣Distribution and Service, Inc. (Fairfax, VA) |
| DSI➣Dealer Satisfaction Index |
| DSI➣Defense Simulation Internet |
| DSI➣Digital Speech Interpolation |
| DSI➣Deliberate Self Injury |
| DSI➣Direct Service Industry |
| DSI➣Dotation Spéciale pour le Logement des Instituteurs (French: Special Allocation for Housing for Teachers) |
| DSI➣Dual Sequential Ignition (Honda automotive engine technology) |
| DSI➣Distribution Service International (France) |
| DSI➣Diseminación Selectiva de Información (Spanish) |
| DSI➣Digital Switch Interface |
| DSI➣Dipole Shear Imager (energy production) |
| DSI➣Devlet Su Isleri (Turkish state water works) |
| DSI➣Discrete Surface Integral (microwave theory) |
| DSI➣Dirty South Improv (Carrboro, North Carolina) |
| DSI➣Delivered Source Instructions |
| DSI➣Dominican Sisters International (Rome) |
| DSI➣Data Securities International |
| DSI➣Destin, FL, USA (Airport Code) |
| DSI➣Development Strategy Institute (Vietnam) |
| DSI➣Data Sharing and Interoperability |
| DSI➣Dial Services Interface |
| DSI➣Devry Student ID |
| DSI➣Deutsche Schule Istanbul (German high school, Istanbul, Turkey) |
| DSI➣Dentistes Solidaires et Indépendants (French: United and Independent Dentists) |
| DSI➣Du Sordet Immobilier (French real estate firm) |
| DSI➣Dayananda Sagar Institutions |
| DSI➣Data Subscriber Interface |
| DSI➣Defense Security Intelligence |
| DSI➣Division of Services Improvement |
| DSI➣Dansk System Industri A/S |
| DSI➣Data Set Interface |
| DSI➣Defense Security Institute |
| DSI➣Data Systems Inquiry |
| DSI➣Daily Stock Inventory |
| DSI➣Dual Stage Inflator (air bag) |
| DSI➣Data Service Interface |
| DSI➣Developmental Science Initiative |
| DSI➣Distilled Spirits Institute |
| DSI➣Declared Site Inspection |
| DSI➣Délégation de Service Informatique (French information technology department) |
| DSI➣Diversified Services for Industry, Inc |
| DSI➣Datawest Solutions Inc |
| DSI➣Director's Strategic Initiatives (US Army Research Laboratory) |
| DSI➣Data Security Interface |
| DSI➣Data Security Insurance |
| DSI➣Direct Switch Interface |
| DSI➣Download Server Initiate Control Message |
| DSI➣Dissimilar Source Integration |
| DSI➣Driver Style Identifier |
| DSI➣Day Sales Inventory |
| DSI➣Direct Signal Interference |
| DSI➣Dealer Self-Inspection (automotive sales) |
| DSI➣Defense Suppression Integration |
| DSI➣Defense System Information |
| DSI➣De Sua Impensa (Latin: At His Own Expenses, epigraphy) |
| DSI➣Descendants Similarity Inheritance |