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ANA is an abbreviation for the airline All Nippon Airways.

ANA is also a medical abbreviation for anti-nuclear antibody. The presence of ANA helps to diagnose systemic lupus erythematosus, though they are non-specific and also appear in some other auto-immune diseases such as Sjögren's syndrome or rheumatoid arthritis, and various non-rheumatological conditions associated with tissue damage.

ANA is an abbreviation for the American Numismatic Association.

ANA is also the Athens News Agency.