HIZ, Hiz, or hi-Z may refer to:
River Hiz, river in England Hi-Z, a name for high impedance in digital electronics Home Ignition Zone, risk of a structure to ignite in a wildfire used in wildland–urban interface HIZ, division code for Haizhou, Lianyungang, China HIZ, ANSI device number code for High Impedance Fault Detector
See also