| Acronym | Definition |
|---|
| EEI | Edison Electric Institute |
| EEI | Elektrotechnik Elektronik Informationstechnik (German: Electrical, Electronic & Information Technologies) |
| EEI | Essential Elements of Information |
| EEI | External Entity Interface |
| EEI | Engin Explosif Improvisé (French: Improvised Explosive Devices) |
| EEI | Études Européennes et Internationales (French: European and International Studies) |
| EEI | Electronic Export Information |
| EEI | Essential Element of Information (US DoD) |
| EEI | Estación Espacial Internacional (Spanish: International Space Station) |
| EEI | Energy Economics, Inc. (est. 1975; Dodge Center, MN) |
| EEI | Energy Efficiency Initiative (various organizations) |
| EEI | Energy Efficiency Indicator |
| EEI | Education and the Environment Initiative (California Department of Education) |
| EEI | Environmental Energy, Inc. (Ohio) |
| EEI | Electrical and Electronics Institute (Thailand) |
| EEI | Electro Energy, Inc. (Connecticut) |
| EEI | Équipement Écologique International (French: International Ecological Equipment) |
| EEI | East of England International (UK) |
| EEI | External Environment Interface |
| EEI | Escadron d'Evaluation et d'Intervention (French: Squadron Evaluation and Intervention) |
| EEI | Euronext Equity and Index (derivatives) |
| EEI | Electronic Equipment Insurance |
| EEI | Early Employment Initiative (New Jersey) |
| EEI | Education Evaluators International (Forest Hills, NY) |
| EEI | Environnement et Études d'Impacts (French: Environmental Impact Studies) |
| EEI | Espace Emploi Insertion (French: Inserting Space; addiction center) |
| EEI | Escadrons d'Eclairage et d'Investigation (French: Lighting Squadrons and Investigation) |
| EEI | Electric Energy Industry (Australia) |
| EEI | Elite Electronics Instruments Ltd |
| 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 | Équipier d'Evacuation et d'Intervention (French: Teammate Evacuation and Intervention) |
| EEI | Electrical Engineer Inspector |
| EEI | Elyxium Effects, Inc. |
| EEI | Electrical & Electromagnetic Interference |
| EEI | Engineering Estimating Initiative (aerospace industry) |