HZD
HZD stands for:
- Hessian headquarters for data processing
- Heart Center Dresden
- Hovawart-Zuchtgemeinschaft Deutschland, VDH-recognized breeding association for the Hovawart
- Carroll County Airport (Tennessee) (FAA code), Carroll County (Tennessee) Airport , Tennessee
- Habitable zones distance, solar distance from planets for liquid water, see Habitable Zone
- Hnutie za demokraciu, see Movement for Democracy
- Horizon Zero Dawn , Dutch game for the PlayStation 4