| BNS | |
| Location Country: | Romania |
| Affiliation: | ITUC, ETUC |
| Members: | 375,000 |
| Full Name: | National Trade Union Bloc |
| Native Name: | Blocul National Sindical |
| Founded: | 1991 |
| Headquarters: | Bucharest, Romania |
| Key People: | Dumitru Costin, president Matei Bratianu, secretary general |
| Website: | www.bns.ro |
The National Trade Union Bloc (BNS) is the second largest national trade union center in Romania. It was founded in 1991 and has a membership of 375,000.
Plans for a BNS merger with CNSLR-Fratia were announced in 1994, however this has not taken place.
BNS is affiliated with the International Trade Union Confederation, and the European Trade Union Confederation.