HMA
- European Economic Area
- HMA (VPN)
- Hargrave Military Academy
- Harvard Musical Association
- Hawaiian Mission Academy
- Heads of Medicines Agencies
- Health Management Associates (Arkansas company)
- Health Management Associates (Florida company)
- Her Majesty's Australian Ship
- Herd Management Area
- High memory area
- Honda Manufacturing of Alabama
- Hot-melt adhesive
- Khanty-Mansiysk Airport
- Regulation of therapeutic goods