K (disambiguation)

K is the eleventh letter of the Latin alphabet.

K may also refer to:

General uses

K (programming language), an array processing language developed by Arthur Whitney and commercialized by Kx Systems
K (cider), a British draft cider manufactured and distributed by the Gaymer Cider Company of Bath, England
K band, radio frequency from 12 to 93 GHz
K computer, a Japanese supercomputer
K-factor (disambiguation), several unrelated terms in physics, engineering, telecommunications and chess
K (Broadway Brooklyn Local), earlier KK, discontinued in 1976
K (Eighth Avenue Local), a defunct service on the New York City Subway, which was known as the AA until 1985
Vitamin K, a group of vitamins that are needed to promote blood coagulation
Kappa (Κ) (Greek alphabet)
Ka (Cyrillic) (К) (Cyrillic alphabet)
Chrysler K platform, 1981–1995 car design used by Chrysler
Low-K, the dielectric constant in semiconductors, electronics, and physics
Operation K, a Japanese World War II naval operation
The K Project, a series of five nuclear tests by the Soviet Union
K–12 education, a designation for the sum of primary and secondary education, used mainly in North America
K, a prefix for North American call signs used by broadcast stations in the US west of the Mississippi River
K College, in Tonbridge, Kent

K (Kylie Minogue book), a photographic book by Kylie Minogue and William Baker
K, a 2011 novel by Bernardo Kucinski, Brazilian journalist and political scientist
K. (novel), a 1915 novel by Mary Roberts Rinehart

K, the protagonist of Franz Kafka's 1926 novel The Castle
K, a character in the manga and anime Gravitation
K, the main character in the novel by the same name by Bernardo Kucinski
K, the main character in the TV series Robotto Keiji (Robot Detective)
K, Todd and Riley's adoptive superspy mother on the Disney program The Replacements
K, the protagonist played by John Abraham in No Smoking
K, a character in Natsume Soseki's novel Kokoro
K, a character in the visual novel Zero Escape: Virtue's Last Reward
K′, also known as "K Dash" or "K Prime", a King of Fighters character
Agent K, the character played by Tommy Lee Jones in Men in Black, Men in Black II, and Men in Black 3
Joseph K., the protagonist of Kafka's 1925 novel, The Trial

$K_n$ and $K_{m,n}$ , the complete and complete bipartite graph
K-theory, a branch of topology and algebra
Blackboard bold $\mathbb K$ is a commonly used symbol for a field, as an abbreviation of the German Körper.

K, Köchel catalogue, chronological catalogue of compositions by Wolfgang Amadeus Mozart
K Records, independent record company based in Olympia, Washington
K (album), 1996 album by Kula Shaker

K, the Keskustapuolue, the Centre Party (Finland)
K, the politics and followers of President of Argentina Néstor Kirchner (born 1950)

k, 1000 (number)
K, ketamine, a street abbreviation for a recreational drug
K, Kyocera' s mobile phones in Japan
K, a strikeout in baseball scorekeeping
K, a contract in legal shorthand
k, a voiceless velar plosive in the International Phonetic Alphabet
K, kosher
K, key color (i.e., black) in the CMYK color model, especially for printing
k, abbreviation of okay, commonly used in instant messaging, or in S.M.S. messages
K, the construction point of a ski jumping hill
k, a shorthand for a knighthood in the British honours system
K, the ticker symbol on the New York Stock Exchange for the Kellogg Company

k, symbol of the kilo- prefix in the SI and other systems of unit that denotes multiples of 1000
K, SI symbol for kelvin, the SI unit of thermodynamic temperature
K (upper case), informal abbreviation for kibibyte or 1024 bytes
k (lower case), informal abbreviation for kilobyte or 1000 bytes
k, kilobit (more correctly kbit)
k, informal abbreviation for kilometre (SI symbol: km)

K (element), the chemical symbol for potassium (from its Latin name kalium)
k, angular wavenumber of a wave
K, the symbol that represents a kaon in particle physics
k, the spring constant in Hooke's law relating deformation (strain) and force applied (stress) to a material body
k or k_B, the Boltzmann constant, the physical constant relating energy and temperature at the particle level
$\kappa$ or K, relative static permittivity (dielectric constant)
k_e, Coulomb's constant
K, equilibrium constant
k, thermal conductivity
k, the Gaussian gravitational constant
k, often used for some proportionality constant