| Acronym | Definition |
|---|
| ENI➣École Nationale des Impôts (French: National Tax School) |
| ENI➣European Neighbourhood Instrument (EU) |
| ENI➣Extreme Networks, Inc. (Santa Clara, CA) |
| ENI➣Ente Nazionale Idrocarburi (Italy) |
| ENI➣Enable Interrupt |
| ENI➣Efficient Networks Interface |
| ENI➣Entire Net Income (finance) |
| ENI➣Ending Net Investment (finance) |
| ENI➣Ecole Nationale d'Ingénieurs (French: National Engineer School) |
| ENI➣École Normale d'Instituteurs (French: Normal School of Teachers; various locations) |
| ENI➣Electrical North Incorporated (Fort Wayne, IN) |
| ENI➣Employee Network Inc. |
| ENI➣Electronic Navigation Industries |
| ENI➣Entertainment Network, Incorporated |
| ENI➣Enteroviral-Nutritional Interaction (etiology of beta-islet cell damage in diabetes) |
| ENI➣Embedded Networking Interface |