HCSI
| Acronym | Definition |
|---|---|
| HCSI | Harvest Christian School International (Philippines) |
| HCSI | Health Care Service Iconography (medical records) |
| HCSI | Health Care-Social Issues (interdisciplinary academic program) |
| HCSI | Home Country Sports Institutes |
| HCSI | High Concrete Structures, Inc. (Denver, PA) |
| HCSI | Household Credit Services, Inc. (financial services) |
| HCSI | Hudson City Savings Institution (New York) |