| Acronym | Definition |
|---|
| HDSB➣Halton District School Board (Ontario, Canada) |
| HDSB➣Heavy Dry Support Bridge |
| HDSB➣Happy Days String Band (est. 1973; New Jersey) |
| HDSB➣Hexasoft Development Sdn. Bhd. (Bradenton, FL) |
| HDSB➣Harvard Divinity School Bulletin (Cambridge, MA) |