NRO
NGO is an abbreviation for:
- National Reconnaissance Office, 1960/61, established military intelligence service of the United States, responsible for military satellite program
- Non-governmental organization, non -governmental organization
- No resuscitation orders, term from the field of palliative care
- Nobeyama Radio Observatory, Radio Observatory in Japan
- Number Resource Organization, merger of five continental Internet registries
- Disambiguation
- Abbreviation