Z is the 26th and last letter of the Latin alphabet.
Z may also refer to:
Computing
- .Z, 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
Literature, Arts, and Entertainment
- "Z", a pseudonym of Ezra Pound
Books
- Z: A Novel of Zelda Fitzgerald, by Therese Fowler
- Z, a novel by Vassilis Vassilikos
Film, television, and theatre
- Z (1969 film), a 1969 French thriller film
- Z (1999 film), a 1999 Kannada thriller film
- Z movie, a description for low-budget films
- The Lost City of Z (film), 2017 American film
- Project Z (film), Telugu language version of the film Maayavan
- Z-Cars, a British television drama series
- Z: The Beginning of Everything, television series about the life of Zelda Fitzgerald
- Z, a play by Anne Szumigalski
- 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
Music
- Z (Aion album)
- 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
Mathematics
- Z-score, a concept in statistics
- zepto- (z), an SI prefix meaning 10−21
- zetta- (Z), an SI prefix meaning 1021
- , the notation for the set of all integers
- , 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
Natural science
- Z boson, an elementary particle
- Z chromosome
- Z, symbol for Atomic number (the number of protons in an atom's nucleus)
- Z, abbreviation for Carboxybenzyl (an organic compound)
- Z, symbol for Compressibility factor (a thermodynamic property)
- Haplogroup Z
- Z, symbol for metallicity (the mass proportion of an astronomical object that is neither hydrogen nor helium)
- , 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
Transportation
- Z (New York City Subway service)
- 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
Military and maritime
- Zulu, the military time zone code for UTC
- Z flag, one of the international maritime signal flags
- Operation Z (1944), the initial Japanese plan for the defense of the Marianas Islands in WWII
- Operation Z, the Japanese code name for the 1941 attack on Pearl Harbor in its planning stages
- 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
Corporations
- 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
Other uses
- Z-plan castle, a form of castle design common in England and Scotland
- Z (cartoonist)
- Z Pulsed Power Facility, an X-ray generator
- 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
See also
- Ž, Ż, Ź, Ze (Cyrillic), Ezh and Ro (kana)
- Big Z (disambiguation)
- Channel Z (disambiguation)
- Z Channel (disambiguation)
- Z Force (disambiguation)
- Z Plan (disambiguation)
- Zed (disambiguation)
- Zee (disambiguation)
- ZZ (disambiguation)
- Zzz (disambiguation)
- Zzzz (disambiguation)