HSE
- Billy Mitchell Airport
- Environment, health and safety
- Fox Sports Southwest
- Half sphere exposure
- Hamilton Southeastern High School
- Hamilton Southeastern Schools
- Health Service Executive
- Health Survey for England
- Health and Safety Executive
- Health and Safety Executive for Northern Ireland
- Health, Safety and Environment
- Helsinki School of Economics
- Herpes simplex encephalitis
- Heyd-Scuseria-Ernzerhof functional
- Higher Speed Ethernet
- Holding Slovenske elektrarne
- Human systems engineering
- Hyderabad Stock Exchange
- Hydrostatic equilibrium
- Nasdaq Helsinki
- National Research University – Higher School of Economics
- Range Rover
- Siderophile element