| Acronym | Definition |
|---|
| NSB | New Smyrna Beach (Florida, USA) |
| NSB | Nationaal-Socialistische Beweging (Dutch: National Socialist Movement) |
| NSB | National Science Board |
| NSB | New Smyrna Beach, FL (Airport Code) |
| NSB | National Speakers Bureau (Canada) |
| NSB | No Short Block |
| NSB | Network Status Byte |
| NSB | Netscape Sidebar |
| NSB | Netscape Browser |
| NSB | Norges Statsbaner |
| NSB | Non Stop Bhangra (est. 2004; dance) |
| NSB | Night Setback (heating control) |
| NSB | Naval Submarine Base |
| NSB | National Standards Body (RSA) |
| NSB | North Slope Borough |
| NSB | Non-Specific Binding |
| NSB | Nevada State Bank |
| NSB | Northampton School for Boys |
| NSB | National Savings Bank (UK) |
| NSB | National Science Bowl |
| NSB | National Scenic Byways (USA) |
| NSB | New Site Build (various companies) |
| NSB | Niederelbe Schiffahrtsgesellschaft (Germany) |
| NSB | Not So Bad |
| NSB | Northland Services for the Blind (Michigan) |
| NSB | Nihilist Spasm Band |
| NSB | Node Switch Board (IBM) |
| NSB | National Spelling Bee |
| NSB | Non-Standard Bridge |
| NSB | North Shore Bank (various locations) |
| NSB | Bimini, Bahamas - North Seaplane Base (Airport Code) |
| NSB | National Standardisation Bodies |
| NSB | Nanzan Symphonic Band (Nanzan University; Japan) |
| NSB | Nihon Short-Wave Broadcasting (now Nikkei Radio Broadcasting; Japan) |
| NSB | Nagoya School of Business (Nagoya, Japan) |
| NSB | National Standardisation Bodies (EU) |
| NSB | National Saving Bank (Sri Lanka) |
| NSB | Null-Space-Based Behavioral (computer science) |
| NSB | Neighborhood Services Bureau |
| NSB | NetWare for Small Business (Novell) |
| NSB | News Service Bureau |
| NSB | Navy Standardization Board |
| NSB | Netilla Service Box |
| NSB | Noob School Bus (gaming clan) |
| NSB | Neem Seed Bitters |
| NSB | National Socialist Bibliography |
| NSB | Nulling Spot Beam (satellite comunucations) |
| NSB | Nuclear Strike Bomb |
| NSB | National Sales Budget |