HIF can refer to:
- The ISO 639-3 language code for Fiji Hindi
- High Intensity Fluorescent lighting fixture
- Horizontal Integration Facility
- High-energy Heavy Ion Fusion (HIF)
- Hypoxia-inducible factor - a transcription factor that helps regulate cellular response to oxygen levels.
- Health Impact Fund - a proposal of incentives for global health
- Football clubs
- Hammarby IF
- Helsingborgs IF
- Hvidovre IF