The term/code Z4 has several uses, including the following: Aviation Z-4, U.S. Army designation for Hybrid Air Vehicles HAV 304/Airlander 10 the IATA airline designator code for Zoom Airlines
Automotive BMW Z4, a BMW sports car model BMW Z4 (E85) - first generation BMW Z4 (E89) - second generation BMW Z4 (G29) - third generation Zbrojovka Z 4, a car made by Zbrojovka Brno , airport crash tender introduced in 2015
Electronics Z4 (computer), the first computer in the world to actually be sold in 1950 Sony Xperia Z4, a smartphone Moto Z4, a smartphone
Military Z-4 plan, a plan that was meant to stop the Croatian War of Independence in 1994 German destroyer Z4 Richard Beitzen Zerstörer 4 (D 178), Fletcher-class destroyer USS Claxton in post-WW2 service in the West Germany Navy Hafdasa Z-4, an Argentine submachine gun
Other Line Z4, a Tianjin Metro line, China LNER Class Z4, a class of British steam locomotives
See also 4Z (disambiguation)