SIHC
| 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) |