| Term | Full Form | Category |
|---|---|---|
| ECY | Earned Car Years | Others |
| ECY | Embankment Cubic Yards | Others |
| ECY | Empty Container Yard | Others |
| ECY | Environment Community and Yourself | Others |
| ECY | Ephedrine Caffeine and Yohimbine | Others |
| ECY | Episcopal Church at Yale | Others |
| ECY | Episcopal Commission on Youth | Others |
| ECY | Episcopal Curriculum for Youth | Others |
| ECY | Evaluated Clinical Year | Others |
| ECY | Evangelical Christian Youth | Others |