| HDI | Half Duplex Interface 
| Others |
| HDI | Hard Disk Interface
| Others |
| HDI | Hard Drive Indicator
| Others |
| HDI | Hardwoods Distribution Inc
| Others |
| HDI | Harley Davidson International
| Others |
| HDI | Head to Disk Interface
| Others |
| HDI | Head to Disk Interference
| Others |
| HDI | Headache Disability Index
| Others |
| HDI | Headache Disability Inventory
| Others |
| HDI | Heading Distance Indicator
| Others |
| HDI | Health Development Initiative
| Others |
| HDI | Health Development International
| Others |
| HDI | Healthcare Delivery Institute
| Others |
| HDI | Heavy Duty Incomplete Vehicle
| Others |
| HDI | Heidi Device Interface
| Others |
| HDI | Help Desk Institute
| Others |
| HDI | Help Desk Internal
| Others |
| HDI | Hexamethylene Di Isocyanate
| Others |
| HDI | Hexamethylene Diisocyanate
| Others |
| HDI | High Definition Imaging
| Others |
| HDI | High Density Interconnect
| Others |
| HDI | High Density Interconnected
| Others |
| HDI | High Density Interconnection
| Others |
| HDI | High Density Interconnector
| Others |
| HDI | High Density Interface
| Others |
| HDI | High Desert International
| Others |
| HDI | Highest Density Interval
| Others |
| HDI | Historically Disadvantaged Individual
| Others |
| HDI | Hitachi Data Ingestor
| Others |
| HDI | Hitachi Debugging Interface
| Others |
| HDI | Home Data Index
| Others |
| HDI | Hoops Device Interface
| Others |
| HDI | Host Defenses And Infection
| Others |
| HDI | Human Data Interaction
| Others |
| HDI | Human Development Index
| Others |
| HDI | Human Development Institute
| Others |
| HDI | Human Device Interface
| Others |
| HDI | Humanitarian Disaster Institute
| Others |
| HDI | Humpty Dumpty Institute
| Others |
| HDI | Hybrid Dual Imaging
| Others |