HBA
- HBA (song)
- Hamba language
- Hawaii Baptist Academy
- Healthcare Businesswomen's Association
- Hemoglobin A
- Hewa Bora Airways
- Highway Beautification Act
- Hirsch Bedner Associates
- Hobart Airport
- Honours degree
- Hood By Air
- Hospital Broadcasting Association
- Host bus adapter
- Human Biology Association
- National Association of Home Builders