NSSO
| Acronym | Definition |
|---|---|
| NSSO | National Sample Survey Organisation (India) |
| NSSO | National Security Space Office |
| NSSO | National Social Security Office (Belgium) |
| NSSO | Name Service Search Option |
| NSSO | Non-Statutory Stock Option (taxes) |
| NSSO | National Serro Scotty Organization (est. 2005) |
| NSSO | Non-Sexual Significant Other |