HZ

Hz is the International Standard symbol for hertz, a unit of frequency.

Hz. may also stand for:


 * Hazrat, an honorific Arabic and Turkish title used to honour a person, used especially for prophets, e.g. Hz. Muhammad, Hz. Ibrahim, etc.

HZ may also stand for:
 * HZ (character encoding)
 * Habitable zone, the distance from a star where a planet can maintain Earth-like life
 * Hazard, a situation that poses a level of threat
 * Haze, in meteorology, METAR code HZ
 * Herero language (ISO 639 alpha-2)
 * Herpes zoster, the shingles virus
 * Holden HZ, an automobile produced by General Motors Holden in the late 1970s
 * Hz-program, a typographic composition computer program created by Hermann Zapf.
 * HZ University of Applied Sciences, a vocational university in Zeeland, Netherlands
 * SAT Airlines (IATA airline designator)
 * Saudi Arabia (aircraft registration code)
 * Croatian Railways (Hrvatske željeznice, HŽ)