| Acronym | Definition |
|---|
| NRSO➣Northern Rivers Symphony Orchestra (South Murwillumbah, NSW, Australia) |
| NRSO➣Naval Reserve Skills Online |
| NRSO➣Netherlands Radio Symphony Orchestra |
| NRSO➣Navy Resale System Office (various locations) |
| NRSO➣Network of Regional Support Offices (UN) |