HIFI
| Acronym | Definition |
|---|---|
| HIFI | High Fidelity |
| HIFI | Hypertext Interface for Information |
| HIFI | Hypertext Interface for Information (Esprit) |
| HIFI | Hotel Investment Forum India (conference) |
| HIFI | Hull International Fisheries Institute (est. 1989; University of Hull; Hull, England, UK) |
| HIFI | Heterodyne Instrument for FIRST (Far-Infra-Red and Sub-Millimeter Telescope) |
| HIFI | High Fire Performance Wood Products (European manufacturers) |