| Abbreviation | Definition |
|---|---|
| HCEF | Holy Land Christian Ecumenical Foundation |
| HCF | Hawaii Community Foundation |
| HCF | Health Care Foundation |
| HCF | Health Care Fund |
| HCF | Hispanic College Fund |
| HCF | Horseless Carriage Foundation |
| HCFI | Horseless Carriage Foundation, Inc. |
| HCFI | Horseless Carriage Foundation, Incorporated |
| HCFIARL | Horseless Carriage Foundation, Inc., Automotive Research Library |
| HCFL | Horseless Carriage Foundation Library |
| HCFS | Hathaway Children and Family Services |
| HCFSP | Hartman Child and Family Scholars Program |
| HCR | Human and Civil Rights Organizations of America |
| HCROA | Human and Civil Rights Organizations of America |
| HCS | Harvard Computer Society |
| HCTAA | Home Care Technology Association of America |
| HCW | Helping Children Worldwide |
| HDDD | High Desert Discovery District |
| HDF | Hunger Defense Fund |
| HDHK | Hoedspruit Diepsee Hengelklub |