| Acronym | Definition |
|---|
| NSD | Northshore School District (Bothell, Washington) |
| NSD | Norrländska Socialdemokraten (newspaper, Luleå, Sweden) |
| NSD | National Signing Day (college football) |
| NSD | National Scrapbooking Day |
| NSD | National Security Division (US FBI) |
| NSD | National Sales Director |
| NSD | Never Say Die |
| NSD | Nuclear Science Division |
| NSD | National Security Directorate |
| NSD | Naval Supply Depot |
| NSD | New Service Development |
| NSD | Normal Spontaneous Delivery (childbirth) |
| NSD | National Security Directives |
| NSD | Nuclear Safety Directorate (UK) |
| NSD | Network Services Division |
| NSD | Nominal Standard Dose |
| NSD | Named Storm Days (hurricanes) |
| NSD | Nairobi Sheep Disease |
| NSD | Nervous System Disorders |
| NSD | Notes System Diagnostics (IBM Lotus Notes) |
| NSD | Nassi-Shneiderman Diagram |
| NSD | Navy Support Date |
| NSD | Network Systems Design |
| NSD | Network Service Daemon (Unix) |
| NSD | Network Security Division |
| NSD | Network Solutions Development |
| NSD | National Software Development (Finland) |
| NSD | National Symposium for Debate (Warren, OH) |
| NSD | Network System Development |
| NSD | North Sea Directorate (Netherlands) |
| NSD | No Structure Detected |
| NSD | Nutrition Support Dietitian (Enteral Nutrition) |
| NSD | Network Service Definition |
| NSD | Network Status Display |
| NSD | Newstyledata (gaming) |
| NSD | National Signal Databases |
| NSD | National Surveillance of Dialysis-Associated Diseases in US. |
| NSD | No Significant Disease |
| NSD | National Sales Division |
| NSD | Numeric Suffix Disambiguation (humor) |
| NSD | Navy Support Data |
| NSD | National Service Days |
| NSD | Nuclear Services Department |
| NSD | Non-Coherent Sequence Detection |
| NSD | Neutron Systems Development Ltd (UK) |
| NSD | Non-Stationary Disturbance |
| NSD | Natural Spoken Dialog |
| NSD | National Service Directory (various locations) |
| NSD | Navy Systems Department |
| NSD | Newport School District (Newport, PA) |
| NSD | New Strategic Direction (various organizations) |
| NSD | NetSupport Deploy (computer networking) |
| NSD | National Self-Determination |
| NSD | Normandy School District (Missouri) |
| NSD | National School District (California) |
| NSD | New Series Dalek (Doctor Who TV series) |