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
Never Say Anything
No Such Agency
Nukes Sail Away
Negative Security Assurance
National Speakers Association
Naughty Secret Agents
No Such Address
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
No Such Advenbbs
Natural Supplement Alternative
National Stronghold Assosiation
National Security Administratiojn
New Sith Ascendency
Not Significantly Aggregated
No Secrets Anywhere
National Security Archive
No Such Amendment
Network Spinal Analysis
Net Sown Area
Community
Not Seasonally Adjusted
Non Self Accepting
National Stroke Association
Neighborhood Statistical Area
National Spiritual Assembly
Net Sellable Area
National Stuttering Association
National Sheriffs Association
Night Stalker Association
Governmental
National Socialist Alliance
Norwegian Security Alliance
National Socialists of America
Naval Support Activity
Non-State Agencies
National Standards Association
National Security Act
National Security Area
National Shipping Authority
NATO (North Atlantic Treaty Organization) Standardization Ag
NATO Standardization Agency
Academic & Science
National Security Agency
Nippon Students Association
National Society of Astronomy
National Society of Athletes
Nursing Students Association
Napier Students Association
National Scholars Academy
Natsionalna Sportna Akademiya
Neutron Star Atmosphere
Number of Signal Averages
National Society of Accountants
Regional
Computing
Non-Service Affecting
Network Security Appliance
Network Security Administration
No Such Animal
Network System Authority
Internet
Business
Nichiren Shoshu of America
Nuyan Sangyo America
Northshore Surfing Association
National Slag Association
National Stone Association
National Skateboard Association
National Sanitary Association
National Safety Associates
North Suncoast Associates
National Security Association
Non-Seasonally Adjusted
National Sanitation Association
National Snipers Association
National Stasi Agency
National Santa Agency