EECO
| Acronym | Definition |
|---|---|
| EECO | Early Eocene Climatic Optimum (paleotemperature) |
| EECO | Environmental Education Council of Ohio (Lancaster, OH) |
| EECO | Environment and Energy Conference (GLOBE Foundation of Canada) |
| EECO | East End Community Organic Farm (East Hampton, NY) |
| EECO | Elevator Equipment Corporation (Los Angeles, CA) |
| EECO | Electronic Engineering Company of California |
| EECO | End-Expiratory Carbon Monoxide |