The National Symphony Orchestra is based in Washington, D.C., US.

National Symphony Orchestra also refers to any of several orchestras playing classical music:

• Danish National Symphony Orchestra, founded 1925
• Estonian National Symphony Orchestra, founded 1926
• Iraqi National Symphony Orchestra, re-established 1970
• Latvian National Symphony Orchestra
• Lebanese National Symphony Orchestra, founded 1999
• Myanmar National Symphony Orchestra
• National Iranian Symphony Orchestra, founded 1998
• National Symphony Orchestra of Colombia, re-established 2004
• National Symphony Orchestra of Cuba, established early 1920s
• National Symphony Orchestra (Dominican Republic), founded 1941
• National Symphony Orchestra Ghana
• RAI National Symphony Orchestra, founded 1994
• RTÉ National Symphony Orchestra of Ireland, adopted name 1989
• National Symphony Orchestra (Mexico), founded 1946
• National Symphony Orchestra (Peru), founded 1938
• National Symphony Orchestra of Polish Radio
• National Symphony Orchestra (Taiwan), founded 1986
• National Symphony Orchestra of Ukraine
• Syrian National Symphony Orchestra, Damascus

This disambiguation page lists articles associated with the title National Symphony Orchestra.
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