LHD

LHD can mean:

• Large Helical Device, a major Japanese nuclear fusion reactor
• LHD (Load, Haul, Dump machine), a vehicle used in Underground mining (hard rock)
• Left hand drive, where a vehicle's steering wheel is mounted to the left side of the cabin. Used in most countries where traffic travels on the right-hand side of the road.
• Landing Helicopter Dock, a US Navy hull classification symbol for multipurpose amphibious assault ships of the Wasp class
• Doctor of Humane Letters, from Latin Litterarum Humanarum Doctor, an honorary academic degree for persons with significant accomplishments in fields other than science
• Linear Heat Detection, a type of Fire alarm system utilized in tunnels and special hazards
• Liechtenstein Homeland Service, a defunct corporatist party in Liechtenstein.