| Acronym | Definition |
|---|
| DPI | Dots Per Inch |
| DPI | Department of Public Instruction |
| DPI | Department of Public Information (UN) |
| DPI | Deep Packet Inspection (Anti-Intrusion Security) |
| DPI | Disabled Peoples' International |
| DPI | Department for Planning and Infrastructure (Australia) |
| DPI | Dry Powder Inhaler |
| DPI | Distributed Protocol Interface |
| DPI | Distributed Program Interface |
| DPI | Division of Plant Industry |
| DPI | Disposable Personal Income |
| DPI | Digital Program Insertion |
| DPI | Digital Projection International |
| DPI | Drive Products (Canada) |
| DPI | Dutch Polymer Institute |
| DPI | Dalit Panthers of India (Tamil Nadu political movement) |
| DPI | Disabled Persons International (Canada) |
| DPI | Direct Programming Interface |
| DPI | Data Processing Installation |
| DPI | Digital Printing and Imaging Association |
| DPI | Dual Polarisation Interferometry |
| DPI | Dye Penetrant Inspection |
| DPI | Digital Products Inc. |
| DPI | Discovery Partners International, Inc. |
| DPI | Association of Public Sector Information Professionals (Canada) |
| DPI | Decision Processes International |
| DPI | Differential Pressure Indicator |
| DPI | Daily Probe |
| DPI | Division of Public Information |
| DPI | Drinking Problems Index |
| DPI | Diamond Products International |
| DPI | Departure Planning Information (ATFM, CFMU) |
| DPI | Digital Phone Interface (Ositech) |
| DPI | Data Processing Information |
| DPI | Dose Powder Inhaler |
| DPI | Derived Product Images (Imagery) |
| DPI | Documento Personal de Identificación (Guatemala) |
| DPI | Death Penalty Initiative |
| DPI | Diffuse Pollution Initiative (UK) |
| DPI | Desired Point of Impact (target) |
| DPI | Death Pact International (music concept) |
| DPI | Destruction Potential Index |
| DPI | Data Path Interface |
| DPI | Deployment Partners Inc. |
| DPI | Democratization Policy Institute |
| DPI | Delaware Pain Initiative |
| DPI | Digital Planimetrics Inc. |
| DPI | Dirty Power, Inc. |
| DPI | Diversified Products Inspections, Inc |
| DPI | Datos de Pacientes Individuales (Spanish: Individual Patient Data) |
| DPI | Driver Performance Index (Australia) |
| DPI | Diving Periodicals International |
| DPI | Directional Power Increase |
| DPI | Dive Patches International (patch production outfit) |
| DPI | Discipleship Publishing International |
| DPI | Detected Pulse Interference |
| DPI | Diffraction Products Inc. |
| DPI | Diabetes Providers Inc (diabetic supplies) |
| DPI | Direct Pour In-Mold |
| DPI | Dane Photoimagery |
| DPI | Dust Puppy Inside (UserFriendly) |
| DPI | Direct RF (Radio Frequency) Power Injection (semiconductors) |