| 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) |