NHA may refer to:
Canada National Hockey Association National Housing Act, 1938
India National Health Authority
Philippines National Housing Authority (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 National Hockey Association