HCD

HCD or hcd may refer to:

Science and technology

• Hectocandela (hcd), a unit of luminous intensity
• Higher-energy collisional dissociation, a mass spectrometry technique
• Highest common divisor
• Host controller driver, for a Host controller interface (USB, Firewire)
• Human-centered design

Other uses

• HC Davos, a Swiss ice hockey club
• California Department of Housing and Community Development, US