NHA may refer to:
Canada
India
Philippines
United Kingdom
- National Health Action Party, a political party in England
United States
- National Healthcareer Association
- National Housing Act of 1934
- National Hydrogen Association
- National Heritage Academies
Vietnam
- NHA, the IATA code for Nha Trang Air Base
Other uses
- 8895 Nha, a main-belt asteroid
- National Health Accounts, a process for monitoring the flow of money in the health sector
- National Highways Authority (disambiguation)
- Neuchâtel Hockey Academy, Swiss ice hockey club
- Nursing home administrator
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