| Acronym | Definition |
|---|
| ECSF | European Clinical Specialization in Fluency Disorders (language therapy) |
| ECSF | Experts-Comptables sans Frontières (French: Accountants without Borders) |
| ECSF | École de Conduite Saint Fons (French driving school) |
| ECSF | European Corporate Sustainability Framework (Netherlands) |
| ECSF | Estacion Cientifica San Francisco (Spanish: Research Station San Francisco; Ecuador) |
| ECSF | Educational Communications Scholarship Foundation (est. 1968) |
| ECSF | Eskom & Construction Services Forum (South Africa) |
| ECSF | École de Cadres Sages-Femmes (French: Senior Midwives School) |
| ECSF | Episcopal Community Services Foundation |
| ECSF | Electronic Combat Support Flight (Air Force Special Operations Command Software distribution system) |