NSA (disambiguation)

NSA may refer to:

• National Security Agency, a United States govenmental agency
• National Security Advisor, a U.S. government position
• National Security Archive, a nongovernmental research institution of George Washington University
• National Scrabble Association, a group of Scrabble players
• National Sheriffs Association, an organization of law enforcement specialists in the United States
• Non standard analysis, in mathematics
• National Society of Accountants
• National Speakers Association, organization for public speaking
• National Stroke Association
• National Stuttering Association, organization for speech impediments
• Neurological Society of Australasia
• Naval Support Activity
• New Saint Andrews College in Idaho
• Neptune Shipping Agency, Ltd.
• British Library Sound Archive at the British Library
• Naczelny Sąd Administracyjny, the Polish Administrative High Court
• Natuurwetenschappelijke Studievereniging Amsterdam, Dutch name of the Association of Physics and Astronomy Students Amsterdam
• No Strings Attached, used in personal advertisements