| SDI | A Single Document Interrupt 
| Others |
| SDI | Saab Direct Ignition
| Others |
| SDI | Saab Display Information
| Others |
| SDI | Safe Direction
| Others |
| SDI | Saidor, Papua New Guinea
| Others |
| SDI | Samsung Digital Interface
| Others |
| SDI | Saugdiesel Direct Injection
| Others |
| SDI | Scuba Diving International
| Others |
| SDI | Sea Dentist, Inc.
| Others |
| SDI | Seamless Development Inc
| Others |
| SDI | Secondhand Dealers in Ideas
| Others |
| SDI | Secure Digital Interface
| Others |
| SDI | Secure Driver Interface
| Others |
| SDI | Security Dynamics Inc
| Others |
| SDI | Selective Dissemination of Information
| Others |
| SDI | Semi Direct Injection
| Others |
| SDI | Semi-Directional Injection
| Others |
| SDI | Sequential Data Set Input
| Others |
| SDI | Serial Data In
| Others |
| SDI | Serial Data Input
| Others |
| SDI | Serial Data Interface
| Others |
| SDI | Serial Digital Interface
| Others |
| SDI | Serial Digital Interfacesdi
| Others |
| SDI | Serial Digital Interference
| Others |
| SDI | Service Delivery Indicators
| Others |
| SDI | Services Device Interface
| Others |
| SDI | Shadowtech Defence Industries
| Others |
| SDI | Sharjah Driving Institute
| Others |
| SDI | Silicone Defense Implant
| Others |
| SDI | Silt Density Index
| Others |
| SDI | Single Doc Interface
| Others |
| SDI | Single Document Interface
| Others |
| SDI | Single Drawing Interface
| Others |
| SDI | Single Stage Driver's Airbag Inflator
| Others |
| SDI | Skill Development Initiatives
| Others |
| SDI | Slightly Deranged Individual
| Others |
| SDI | Smart Data Integration
| Others |
| SDI | Smash Directional Influence
| Others |
| SDI | Snappy Driver Installer
| Others |
| SDI | Software Defined Infrastructure
| Others |
| SDI | Software Development Institute
| Institute, Software |
| SDI | Software Distribution Network Info file
| Others |
| SDI | Software Distribution Network Information
| Others |
| SDI | Solenoid Direct Injection
| Others |
| SDI | Sonoran Desert Institute
| Others |
| SDI | Southern Dental Industries
| Others |
| SDI | Space Development Information
| Others |
| SDI | Spatial Data Infrastructure
| Others |
| SDI | Specially Designed Instruction
| Others |
| SDI | Spectral Diagnostics, Inc.
| Others |
| SDI | Spiritual Directors International
| Others |
| SDI | Sport Development Index
| Others |
| SDI | Spraying Devices Inc
| Others |
| SDI | Sql Debug Interface
| Others |
| SDI | Squirrel Defense Initiative
| Others |
| SDI | Standard Deviation Index
| Others |
| SDI | Standard Diesel Injection
| Others |
| SDI | Standard Disk Interconnect
| Others |
| SDI | Standard Diversified Inc
| Others |
| SDI | Standard Drive Interface
| Others |
| SDI | State Disability Insurance
| Others |
| SDI | Statistics on Depository Institutions
| Others |
| SDI | Steel Deck Institute
| Others |
| SDI | Steel Door Institute
| Others |
| SDI | Steel Dynamics Inc
| Others |
| SDI | Sterling Design Industries
| Others |
| SDI | Storage Device Interconnect
| Others |
| SDI | Storage Device Interface
| Others |
| SDI | Strategic Defense Initiative
| Others |
| SDI | Strategic Destruction And Infiltration
| Others |
| SDI | Strategic Deterrence Initiative
| Others |
| SDI | Strategic Digital Insertion
| Others |
| SDI | Strategic Driver Information
| Others |
| SDI | Stratified Diesel Injection
| Others |
| SDI | Street Drug Interdiction
| Others |
| SDI | Strength Deployment Inventory
| Others |
| SDI | Structure Directed Initiation
| Others |
| SDI | Structured Data Interface
| Others |
| SDI | Subsurface Drip Irrigation
| Others |
| SDI | Subtitling Dubbing International
| Others |
| SDI | Success Driven Initiatives
| Others |
| SDI | Suction Diesel Injection
| Others |
| SDI | System Development Integration
| Others |
| SDI | System Dynamics International
| Others |
| SDI | Systemic Development Institute
| Others |
| SDI | Systems Design and Implementation
| Others |
| SDI | Systems Design Inc
| Others |
| SDI | Systems Distributors Inc
| Others |
| SDI | Systems Division Inc
| Others |
| SDI | Systems Documentation Inc
| Others |