English abbreviations from hcr to hda
- HCR (Holy Cross Airport (FAA: HCA))
- HCRA (Harvard Center for Risk Analysis)
- HCRC (Harvard Cancer Research Center)
- HCROA (Human and Civil Rights Organizations of America)
- HCRU (High Current Relay Unit)
- HCS ((celestial object) Heliospheric Current Sheet, the boundary where the polarity of the Sun's magnetic field changes direction)
- HCSC (Higher Command and Staff Course)
- HCT (HOT Compact Turret)
- HCTA (Helicopter Composite Technology Application)
- HCTAA (Home Care Technology Association of America)
- HCTAR (Harvard Center for Textile and Apparel Research)
- HCTR (High Capacity Truck Radio)
- HCU (High-Capacity Computer Unit)
- HCW (Cheraw Municipal Airport / Lynch Bellinger Field (FAA: CQW))
- HD (Henry Draper (star catalogue))
- HDA (Helideck Assistant)
