| Acronym | Definition |
|---|
| HFI | Hepatitis Foundation International |
| HFI | Human Factors International |
| HFI | Held for Investment (finance) |
| HFI | Hp Font Information |
| HFI | Hedge Fund Index (various organizations) |
| HFI | Hormone-Free Interval (oral contraceptives) |
| HFI | Healthy Forests Initiative |
| HFI | Homes for Islington (UK) |
| HFI | Hereditary Fructose Intolerance |
| HFI | Hydrogen Fuel Initiative (est. 2004) |
| HFI | Hold for Inspection (various companies) |
| HFI | Hope for Israel (Jewish ministry) |
| HFI | Health Food Institute (UK) |
| HFI | High-Frequency Induction |
| HFI | Hostile Fire Indication |
| HFI | Hollywood Film Institute (since 1990; in Santa Monica, California) |
| HFI | Human Freedom Index |
| HFI | Healing for Iran (Austin, TX) |
| HFI | Hardware Fault Insertion |
| HFI | Health Facility Institute |
| HFI | Healthcare Financial, Inc. (Boston, MA) |
| HFI | Human Factors Interface |
| HFI | Host Front-End Interface |
| HFI | Hunt Foods and Industries |
| HFI | Highly Food Insecure |
