DPI
- DP (disambiguation)
- DPL (disambiguation)
- Daffodil Polytechnic Institute
- Data processing inequality
- Daytona Prototype International
- Deep packet inspection
- Department of Primary Industries (Queensland)
- Department of Public Information
- Dhaka Polytechnic Institute
- Digital program insertion
- Digital public infrastructure
- Disabled Peoples' International
- Discovery Partners Institute
- Dispersity
- Disposable personal income
- Dots per inch
- Dp1 (disambiguation)
- Dry powder inhaler
- Dual polarisation interferometry
- Dye penetrant inspection
- Mouse dpi
- New South Wales Department of Primary Industries
- Queensland Government
- SystemVerilog DPI