National Association may refer to:
Politics
edit- National Association (South Korea), a political party 1946–1960
- Kokumin Kyōkai ('National Association'), a Japanese political party 1892–1899
United States baseball
edit- National Association of Base Ball Players (1857–1870), the first organization governing American baseball
- National Association of Professional Base Ball Players (1871–1875)
- National Association (1879–1880)
Other uses
edit- National Association, or "N.A.", the official designation of federally chartered banks in the United States