| Acronym | Definition |
|---|
| CELF | Clinical Evaluation of Language Fundamentals (language assessment) |
| CELF | Consumer Electronics Linux Forum |
| CELF | Centre d'Exportation du Livre Français (French: French Paper Export Center) |
| CELF | Center on the Everyday Lives of Families (University of California, Los Angeles) |
| CELF | Centre Européen de Langue Française (French: European Center of French Language; Belgium) |
| CELF | Certificat Élémentaire de Langue Française (French: Basic Certificate in French Language) |
| CELF | Canadian Ethics Leadership Forum (corporate conduct management) |
| CELF | CUG-BP (Cytosine-Uridine-Guanine-Binding Protein) and ETR-3 (ELAV (Embryonic Lethal Abnormal Vision)-Type RNA-Binding Protein) Like Factor (protein family) |
| CELF | Choice for Enlightened Living Foundation (New Jersey) |