| Acronym | Definition |
|---|
| EFCO➣European Federation of Campingsite Organisations |
| EFCO➣European Folk Culture Organisation |
| EFCO➣Epilepsy Foundation of Colorado (Denver, CO) |
| EFCO➣Evangelical Free Church of Oakland (Oakland, CA) |
| EFCO➣Economy Forms Company |
| EFCO➣Espace Finance & Conseils (French: Space & Finance Advice) |
| EFCO➣Efficiency of Power Generation for Commercial Use with Oil |