| Acronym | Definition |
|---|
| NSP | Network Service Provider |
| NSP | Nature's Sunshine Products |
| NSP | Neighborhood Stabilization Program |
| NSP | National Ski Patrol |
| NSP | Neurotoxic Shellfish Poisoning |
| NSP | Native Service Processing |
| NSP | Network Services Protocol |
| NSP | Netilla Security Platform (AEP) |
| NSP | Northern States Power Company |
| NSP | National Solidarity Programme (Afghanistan) |
| NSP | Narrow Spot (stage lighting) |
| NSP | Non-Starch Polysaccharides |
| NSP | Native Signal Processing |
| NSP | Node Switch Processor (Cisco) |
| NSP | Nepal Sadbhavana Party (Nepal) |
| NSP | National Solidarity Party (Singapore) |
| NSP | Needle/Syringe Program |
| NSP | Nova Scotia Power |
| NSP | Not Separately Priced |
| NSP | Network Signal Processor |
| NSP | New Society Publishers |
| NSP | Northern State Parkway (New York) |
| NSP | National Stuttering Project |
| NSP | National HIV/AIDS Strategic Plan |
| NSP | News Service Provider |
| NSP | Network Service Part (SS7 SCCP) |
| NSP | Network Service Point (Cisco) |
| NSP | Native Sound Processing |
| NSP | North Saint Paul (Minnesota) |
| NSP | National Search and Rescue Plan |
| NSP | National Signatures Program |
| NSP | National Science Partnership (Girls Scouts of America/Franklin Museum) |
| NSP | Navigation Systems Panel (ICAO) |
| NSP | NASA Support Plan |
| NSP | Network Service Processor |
| NSP | Native Signal Processor |
| NSP | Stichting Nederlandse Sport Pers Service |
| NSP | Network Security Plan |
| NSP | National Signaling Point (CCS #7 ITU-T) |
| NSP | Non-Stop Production (Brooklyn, NY) |
| NSP | Navy Strategic Plan (UK MoD) |
| NSP | Nigeria Society of Physiotherapy |
| NSP | Netilla Service Platform |
| NSP | National Selection Process |
| NSP | Network Support Plan |
| NSP | Network Switch Processor (Cisco) |
| NSP | Navy Support Plan |
| NSP | Nuclear Strike Plan |
| NSP | Non Standard Parameter |
| NSP | Next Sequential Prefetching |
| NSP | Non-Standard Price |
| NSP | Normal Safety Procedure(s) |
| NSP | NATO Standardization Program |
| NSP | Network Security Perimeter |
| NSP | Novell Script Page(s) |
| NSP | National Socialist Policy |
| NSP | Naval Support Plan |
| NSP | NATO Strike Plan |
| NSP | Non-Standard Holding Pattern |
| NSP | Network Supervisory Packet |
| NSP | Navy Space Project |
| NSP | No Silent Period (radio broadcasting) |
| NSP | Nuclear Surety Procedure |
| NSP | Non Surgical Procedure |
| NSP | Nikkei Spot Price |
| NSP | Node Set Partitioning (algorithm) |
| NSP | Network Security Pod (NDG) |