# Z (disambiguation)

Z, or z, is the twenty-sixth and last letter of the English alphabet.
Z may also refer to:

## Film and television

* Z (1969 film), a 1969 Algerian-French thriller film based on the murder of a Greek politician.
* Z (1999 film), a 1999 Indian mystery-thriller film (in Kannada language)
* Z (2019 film), a 2019 Canadian horror film
* Z movie, a description for low-budget films
* The Lost City of Z (film), 2017 biopic about explorer Percy Fawcett
* Project Z (film), Telugu language version of the science fiction thriller Maayavan
* Z-Cars, a British police procedural TV drama series
* Z: The Beginning of Everything, television series about the life of Zelda Fitzgerald
* Elizabeth "Z" Delgado, a Power Rangers: S.P.D. character
* Z, the production code for the 1966 Doctor Who serial The Gunfighters
* Z-4195, often called "Z", a worker ant, the protagonist of Antz
* Ultraman Z, a 2020 tokusatsu series
* World War Z (film), a 2013 zombie horror film
* Attack Force Z, a 1982 film

## Music

* Z (EP)
* Z (My Morning Jacket album)
* Z number, prefix for works of Henry Purcell in the Zimmerman catalog
* Project Z (band), band for which Jimmy Herring played
* WHTZ, or Z 100, an iHeartRadio station in New York City
* "Z", a song by Gayle that was released in 2020

## Literature

* "Z", a pseudonym of Ezra Pound
* Z: A Novel of Zelda Fitzgerald, by Therese Fowler
* Z, a novel by Vassilis Vassilikos
* Z, a play by Anne Szumigalski

## Mathematics

* Z-score, a concept in statistics
* zepto- (z), an SI prefix meaning 10$^{−21}$
* zetta- (Z), an SI prefix meaning 10$^{21}$
* $\mathbb {Z}$, the set of integer numbers
** $\mathbb {Z} /n\mathbb {Z}$, the set of all integers modulo n.
** $\mathbb {Z} _{p}$, the set of all p-adic integers or sometimes the set of all integers modulo n.
* Z, symbol for plastic section modulus, a geometric property
* Z, the number 35 in base 36 and higher
* z-axis, part of the Cartesian coordinate system

## Computing

* .Z (disambiguation), a file extension
* Z (video game), a 1996 computer game
* Z notation, a specification language for computing systems
* z-buffering, the management of depth for 3-D graphics
* Z-machine, a virtual machine used by Infocom for text adventure games
* z/OS, a 64 bit operating system for mainframe computers
* Z or ZF or Z flag, designations for the zero flag register
* HP Z, a PC workstation brand of Hewlett Packard
* Z (high impedance), one of the states in three-state logic

## Natural sciences

* Z boson, an elementary particle
* Z, symbol for atomic number (the number of protons in an atom's nucleus)
* Z, symbol for compressibility factor (a thermodynamic property)
* Z, symbol for metallicity (the mass proportion of an astronomical object that is neither hydrogen nor helium)
* Z, abbreviation for carboxybenzyl (an organic compound)
* $z$, the degree of redshift in astronomical spectroscopy
* Z, a descriptor for stereoisomers with a double bond in E-Z notation
* Z, the number of formula units per unit cell in a crystalline solid
* Z Pulsed Power Facility, an X-ray generator
* Z chromosome
* Haplogroup Z

## Transportation

* Z (New York City Subway service)
* Tokyo Metro Hanzōmon Line, a subway service operated by the Tokyo Metro, labeled
* , the official West Japan Railway Company service symbol for the Fukuen Line.
* Honda Z, a kei car
* Honda Z series, a line of minibikes
* Nissan Z-car, a series of sports cars
* Kawasaki Z series, a series of motorcycles
* Lincoln Z, a mid-size luxury sedan
* HiPhi Z, an executive car
* BMW Z, a series of sports cars

## Military

* Zulu, the military time zone code for UTC
* Z (military symbol), a symbol used by Russian military vehicles during the 2022 Russian invasion of Ukraine
* Operation Z, the Japanese code name for the 1941 attack on Pearl Harbor in its planning stages
* Operation Z (1944), the initial Japanese plan for the defense of the Marianas Islands in WWII
* Force Z, the British naval squadron sunk off Malaya in 1941
* Plan Z, a German naval construction program
* Class Z Reserve, contingent of the British Army
* Project Z (bomber project) of World War II Japan
* Z-4 Plan, a proposal to settle the Croatian War of Independence
* Hypothesis Z, a Romanian war plan for World War I

## Organisations

* Together (Zajedno), a political party in Serbia
* Z Energy, a New Zealand energy processing company
* Z Corporation, a computer printer company
* Z Communications, an activist media group, publishers of Z Magazine
* Z, a brand logo of Zed Books (a publishing company in London)
* Z, stock trading symbol for the Zillow Group

## People

* Zendaya, American actress and singer sometimes going by the nickname "Z"

## Other uses

* Z flag, one of the international maritime signal flags
* Z-plan castle, a form of castle design common in England and Scotland
* Z (cartoonist)
* Z (joke line), an American dial-a-joke service of the 1970s and 1980s
* Z scale, a 1:220 model railway scale
* z, the IPA symbol for a voiced alveolar sibilant sound
* Lost City of Z, a hypothetical ancient city in Brazil
* Z (underaged killer), placeholder designation of an unnamed 15-year-old minor who committed the 2001 murder of Annie Leong under the orders of her husband Anthony Ler in Singapore
* Suzanne "Z" Yang, American Girl character
* Z, the main antagonist of Xenoblade Chronicles 3