| Abbreviation | Definition |
|---|---|
| ERCF | Elora Road Christian Fellowship |
| ERCS | Eagle Ridge Christian School |
| ERCS | East Richland Christian Schools |
| ERD | Ethical and Religious Directives |
| ERDO | Emergency Relief and Development Overseas |
| ERG | Existence, Relatedness, and Growth |
| ERICO | Event Religion Inauguration Ceremony and Organisation |
| ERLC | Ethics & Religious Liberty Commission |
| ERS | Ethical and Religious Studies |
| ERSP | Evangelical Review of Society and Politics |
| ERSU | Evangelical Reformed Seminary of Ukraine |
| ERWM | Eastern Regional Watch Ministries |
| ES | Ecumenical Solution |
| ES | Elder Scrolls |
| ES | Evangelical Student |
| ESA | Etienne Saint Amant |
| ESA | Evangelicals for Social Action |
| ESAF | Evangelical Social Action Forum |
| ESCA | East Shoreline Catholic Academy |
| ESCAPE | Evangelical Sea Camp And Peak Experience |