SIEL
| Acronym | Definition |
|---|---|
| SIEL | Society of International Economic Law |
| SIEL | Syndicat National des Industries de l'Emballage Léger en Bois (French: National Syndicate of Industries Packaging Light Wood) |
| SIEL | Samsung India Electronics, Ltd. (est. 1995; Bangalore, India) |
| SIEL | Sport Initiative et Loisir (French: Sport and Recreation Initiative) |
| SIEL | Samsung India Electronics Limited |
| SIEL | Standard Individual Export License (UK) |
| SIEL | Small Intestine Intraepithelial Lymphocytes |