| Acronym | Definition |
|---|
| HDDC➣Historic District Development Corporation (Atlanta, GA) |
| HDDC➣Heavy Duty Distributor Council (Canada) |
| HDDC➣High Definition Digital Cinema |
| HDDC➣High-Dimensional Data Clustering (algorithm) |
| HDDC➣Hard Disk Drive Controller (software; hardware) |
| HDDC➣Hitachi Device Development Center (Tokyo, Japan) |