| Acronym | Definition |
|---|
| SIHC➣Southern Indian Health Council |
| SIHC➣Survey of Income and Housing Costs (now Survey of Income and Housing; Australia) |
| SIHC➣Steel Industry Heritage Corporation (Homestead, PA) |
| SIHC➣South Island High Country (Federated Farmers of New Zealand) |
| SIHC➣Shenzhen Investment Holding Corporation (China) |