HSI
HSI stands as an abbreviation for:
- Handknattleikssamband Íslands , the Icelandic handball association
- Hang Seng Index , Hong Kong Stock Exchange stock index
- High-Speed Interconnect , a bridge chip
- Homeland Security Investigations, United States Police and Customs Agency
- Horizontal Situation Indicator , an instrument for flight navigation
- HSI color space (hue - saturation - intensity) in image processing, see HSV color space
- Hyperspectral imaging in remote sensing, see Hyperspectral