| Acronym | Definition |
|---|
| EEI | Edison Electric Institute |
| EEI | Electronic Export Information |
| EEI | Estación Espacial Internacional (Spanish: International Space Station) |
| EEI | Energy Efficiency Indicator |
| EEI | Education and the Environment Initiative (California Department of Education) |
| EEI | Electrical and Electronics Institute (Thailand) |
| EEI | Electro Energy, Inc. (Connecticut) |
| EEI | External Environment Interface |
| EEI | Electronic Equipment Insurance |
| EEI | essential element of information (US DoD) |
| EEI | Electric Energy Industry (Australia) |
| EEI | Extended Experimental Investigation |
| EEI | Explosive, Extremely Insensitive |
| EEI | Energy Education, Inc. |
| EEI | Equipment-to-Equipment Interface |
| EEI | Egyptian Educational Initiative |
| EEI | École d'Éducation Internationale |
| EEI | Extreme Event Index |
| EEI | Electronic Filing of Export Information (customs declaration for expensive items) |
| EEI | Escuela de Estudios Internacionales (Spanish: Universidad Central de Venezuela) |
| EEI | Environmental Enterprises Incorporated |
| EEI | Editorial Eye Index |
| EEI | Earth Engineering Inc. (East Norriton, PA) |
| EEI | Electrical Engineer Inspector |
| EEI | Elyxium Effects, Inc. |
| EEI | Electrical & Electromagnetic Interference |
| EEI | Engineering Estimating Initiative (aerospace industry) |
| EEI | Euronext Equity and Index (derivatives) |
| EEI | Elite Electronics Instruments Ltd |
| EEI | Elektrotechnik Elektronik Informationstechnik (German: Electrical, Electronic & Information Technologies) |