| Acronym | Definition |
|---|
| HCSD | Harbor Creek School District (Harborcreek, Pennsylvania) |
| HCSD | Hernando County School District (Florida) |
| HCSD | Horry County School District (South Carolina) |
| HCSD | Homer Center School District (Homer City, PA) |
| HCSD | Hillsborough County School District (Hillsborough County, FL) |
| HCSD | Hilliard City School District (Hilliard, OH) |
| HCSD | Hilton Central School District (Hilton, NY) |
| HCSD | Horizon College of San Diego (San Diego, California) |
| HCSD | High Country Service Data (Cooma, Australia) |
| HCSD | Huron County Sheriff's Department (Michigan) |