| Acronym | Definition |
|---|
| EGCA➣European Green Capital Award |
| EGCA➣European Group Cat Association |
| EGCA➣Engineering & General Contractors Association (San Diego, CA) |
| EGCA➣Emersons Green Community Association (UK) |
| EGCA➣Estonian Grid Certification Authority |
| EGCA➣Egretta Caerulea (little blue heron) |
| EGCA➣Église Gnostique Catholique Apostolique (French: Gnostic Catholic Apostolic Church; various locations) |