NSA
NSA most often stands for the United States National Security Agency, but it is also used humorously as 'No Such Agency,' in IT to denote Network Security Appliances or Administration, and colloquially to mean 'No Strings Attached.'
Medical
Miscellaneous
National Stronghold Assosiation
No Suits Allowed
No Straight Answers
Novo Sono Ardesco
No Sprinting Allowed
National Security Agent
No Strings Attached
Network Supported Accounts
New Sliding Arm
Non Self Ad
Natural Supplement Alternative
No Such Advenbbs
National Security Administratiojn
New Sith Ascendency
Not Significantly Aggregated
No Secrets Anywhere
National Security Archive
No Such Amendment
Network Spinal Analysis
Net Sown Area
Never Say Anything
No Such Agency
No Such Address
Nukes Sail Away
Negative Security Assurance
Naughty Secret Agents
National Speakers Association
Community
Night Stalker Association
National Spiritual Assembly
Net Sellable Area
Not Seasonally Adjusted
Non Self Accepting
National Stroke Association
Neighborhood Statistical Area
National Stuttering Association
National Sheriffs Association
Governmental
NATO Standardization Agency
Non-State Agencies
National Standards Association
National Socialist Alliance
NATO (North Atlantic Treaty Organization) Standardization Ag
Norwegian Security Alliance
National Security Act
National Shipping Authority
Naval Support Activity
National Socialists of America
National Security Area
Academic & Science
National Security Agency
Natsionalna Sportna Akademiya
National Society of Accountants
Number of Signal Averages
Napier Students Association
National Scholars Academy
Neutron Star Atmosphere
Nursing Students Association
Nippon Students Association
National Society of Astronomy
National Society of Athletes
Regional
Computing
Network System Authority
Non-Service Affecting
No Such Animal
Network Security Administration
Network Security Appliance
Internet
Business
National Stone Association
Northshore Surfing Association
National Slag Association
National Santa Agency
Non-Seasonally Adjusted
Nichiren Shoshu of America
Nuyan Sangyo America
National Security Association
North Suncoast Associates
National Safety Associates
National Sanitation Association
National Stasi Agency
National Skateboard Association
National Sanitary Association
National Snipers Association