| NGI | Dutch Computer Society 
| Others |
| NGI | Nationaal Geografisch Instituut
| Others |
| NGI | National Genetics Institute
| Others |
| NGI | National Girls Initiative
| Others |
| NGI | National Girls Institute
| Others |
| NGI | Natural Gas Intel
| Others |
| NGI | Natural Gas Intelligence
| Others |
| NGI | Natural General Intelligence
| Others |
| NGI | Natural Gourmet Institute
| Others |
| NGI | Natural Gourmet Institute's
| Others |
| NGI | Nature's Gifts International
| Others |
| NGI | Navigazione Generale Italiana
| Others |
| NGI | Navigazione Generali Italiana
| Others |
| NGI | Nederlands Genootschap voor Informatica
| Others |
| NGI | Network Gateway Interface
| Others |
| NGI | New Generation Initiative
| Others |
| NGI | Next Generation Identification
| Others |
| NGI | Next Generation Impactor
| Others |
| NGI | Next Generation Insurance
| Others |
| NGI | Next Generation Interface
| Others |
| NGI | Next Generation Internet
| Others |
| NGI | Ngau Island, Fiji
| Others |
| NGI | Nice Guys, Inc.
| Others |
| NGI | No Good Image
| Others |
| NGI | Non Gaussianity Index
| Others |
| NGI | Norges Geotekniske Institutt
| Others |
| NGI | Northern Gulf Institute
| Others |
| NGI | Northern Gulf Institute's
| Others |
| NGI | Norwegian Geotechnical Institute
| Others |