K4 or K-4 may refer to:

Military

* Daewoo K4, a South Korean automatic grenade launcher * HMS ''K4'', a 1915 British K class submarine * K 4 or Norrland Dragoon Regiment, a Swedish Army cavalry regiment *

K-4 (SLBM) K-4 is a nuclear capable Intermediate-range submarine-launched ballistic missile developed by the Defence Research and Development Organisation of India to arm the Arihant-class submarines. The missile has a maximum range of about 3,500 km ...

, an Indian submarine-launched ballistic missile * USS ''K-4'' (SS-35), a 1914 United States Navy K-class submarine

Transport

* China Railway K3/4 * K-4 (Kansas highway), a highway in Kansas * Kalitta Air, IATA code K4, an American cargo airline * LNER Class K4, a British class of 2-6-0 steam locomotives *

London Buses route K4 This is a list of Transport for London (TfL) contracted bus routes in London, England, as well as commercial services that enter the Greater London area (except coaches). Bus services in London are operated by Abellio London, Arriva London, ...

, a Transport for London contracted bus route *

PRR K4s The Pennsylvania Railroad (PRR) K4 4-6-2 "Pacific" (425 built 1914–1928, PRR Altoona, Baldwin) was its premier passenger-hauling steam locomotive from 1914 through the end of steam on the PRR in 1957. Attempts were made to replace the ...

or Pennsylvania Railroad Type K4, a class of American 4-6-2 steam locomotives

Other uses

* K4, a Security company * K4, a four-man sprint kayak * K4, a model of the British red telephone box * K4, a normal modal logic * K, in graph theory, the complete graph of four vertices * K, in abstract algebra, the Klein four-group *

K4 (mountain) Gasherbrum II ( ur, ; ); surveyed as K4, is the 13th highest mountain in the world at above sea level. It is the third-highest peak of the Gasherbrum massif, and is located in the Karakoram, on the border between Gilgit–Baltistan, Pakistan a ...

or Gasherbrum II, a mountain between China and Pakistan *

Kawai K4 The Kawai K4 is a 61 key synthesizer manufactured in 1989 by Kawai. It contains several features beyond those offered on Kawai's K1, adding resonant filters and a DAC PCM Pulse-code modulation (PCM) is a method used to digitally represe ...

, a digital synthesizer made by

Kawai Musical Instruments is a musical instrument manufacturing company headquartered in Hamamatsu, Shizuoka, Japan. It is best known for its grand pianos, upright pianos, digital pianos, electronic keyboards and electronic synthesizers. The company was founded in Augus ...

Koalisyon ng Katapatan at Karanasan sa Kinabukasan The Koalisyon ng Katapatan at Karanasan sa Kinabukasan (''K4, Coalition of Truth and Experience for Tomorrow'') is the political multi-party electoral alliance that supported president Gloria Macapagal Arroyo, who won 2004 Philippine presidential ...

(K4, Coalition of Truth and Experience for Tomorrow), a Philippine political coalition * K4 refers to Kryptos part 4, the last section of the cryptographic puzzle sculpture (currently unsolved)

Military

Transport

Other uses

See also