| NSF | Andrews NAF Airport 
| Others |
| NSF | Nashville Shakespeare Festival
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| NSF | National Safety Foundation
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| NSF | National Sanitary Foundation
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| NSF | National Sanitation Foundation
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| NSF | National Schizophrenia Fellowship
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| NSF | National Schizophrenia Foundation
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| NSF | National Science
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| NSF | National Science Fdn
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| NSF | National Science Foundation
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| NSF | National Science Foundation's
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| NSF | National Scoliosis Foundation
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| NSF | National Secessionist Forum
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| NSF | National Security Foundation
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| NSF | National Service Framework
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| NSF | National Service Full
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| NSF | National Sleep Foundation
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| NSF | National Sport Federation
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| NSF | National Sports Federation
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| NSF | National Stakeholder Forum
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| NSF | National Standard Format
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| NSF | National Strike Force
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| NSF | Nationalsocialistisk front
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| NSF | Naval Services Familyline
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| NSF | Needless Science Funding
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| NSF | NEM (N-EthylMaleimide) Sensitive Factor
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| NSF | Nemoni Star Forces
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| NSF | Nephrogenic Systemic Fibrosis
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| NSF | NES Sound Format
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| NSF | Net Square Feet
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| NSF | Net Square Footage
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| NSF | Network Security Functions
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| NSF | Network Supervisory Function
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| NSF | Neurotic Sound Foundation
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| NSF | New Small Family
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| NSF | No Sector Found
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| NSF | No Significant Findings
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| NSF | Non Standard Facilities
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| NSF | Non Stop Forwarding
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| NSF | Non-Sorbitol Fermenter
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| NSF | Non-Specific Finding
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| NSF | Non-Spin Flip
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| NSF | Non-Standard Facilities
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| NSF | Non-Stop Forwarding
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| NSF | Noob Strike Force
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| NSF | Norges speiderforbund
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| NSF | Normal System Foundation
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| NSF | Norsk Statsvitenskapelig Forening
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| NSF | North Sea Fleet
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| NSF | North South Foundation
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| NSF | Northern Special Forces
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| NSF | Norwegian Political Science Association
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| NSF | Not So Fast
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| NSF | Not Sufficient Faculty
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| NSF | Not Sufficient Funds
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| NSF | Notes Standard File
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| NSF | Notes Storage Facility
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| NSF | Nuchal Skin Fold
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| NSF | Nuclear Science Foundation
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| NSF | Nuclear Storage Facility
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| NSF(!) | NOT SO FAST (!)
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