| Acronym | Definition |
|---|
| SIIC | Sociedad Iberoamericana de Información Científica |
| SIIC | Supreme Islamic Iraqi Council (Iraq) |
| SIIC | Sociétés d'Investissements Immobiliers Cotées (Les Echos, French paper) |
| SIIC | Sugar & Integrated Industries Company (Egypt) |
| SIIC | See If I Care |
| SIIC | Saudi International Innovation Conference |
| SIIC | Standard International Industrial Classification |
| SIIC | Special Interest Item Code |
| SIIC | Serious Injury/Illness Case |
| SIIC | Swiss Institute for Interdisciplinary Conflict Research |
| SIIC | Sequential Iterative Interference Cancellation |