KD

KD and variants may refer to:

Businesses and organizations

KD Avia, a former Russian airline (IATA code KD)
KD Transportation Group, a South Korean bus company
Kalstar Aviation (IATA code KD)
Kappa Delta, a National Panhellenic sorority
Kendell Airlines, a former Australian airline (IATA code KD)
Keolis Downer, an Australian public transport operator
Kings Dominion, an amusement park located in Doswell, Virginia
Koleje Dolnośląskie, a Polish rail operator
Köln-Düsseldorfer, a river cruise operator based in Cologne, Germany
Stock ticker symbol for Kyndryl Holdings, an IT services company based in New York City

Dissociation constant (K_D), a type of equilibrium constant
K-d tree, a data structure in computing
Kawasaki disease, an inflammatory disease causing vasculitis and sometimes aneurysm
Kienböck's disease, an avascular necrosis in the lunate bone of the wrist
Toyota KD Engine, an engine manufactured by Toyota
Gene knockdown, a genetic modification technique

K.D., a 2019 Indian Tamil-language film
KD Station, a meat packing plant, later business and entertainment complex, in Sioux City, Iowa, US
Kapal DiRaja, a ship prefix used in the Royal Malaysian Navy
Katamari Damacy, a PlayStation 2 video game
Kentucky Deluxe, a brand of American whiskey
k.d. lang, a Canadian pop singer-songwriter
Kevin Durant, a professional basketball player
Kuldeep Yadav, Indian cricketer
Krisdayanti, an Indonesian singer and actress
K?d, an American DJ and record producer
Christian Democrats (Sweden), a Swedish political party
Christian Democrats (Finland), a Finnish political party
Khaki drill, a fabric used in 20th-century British military uniforms
Knock-down kit, a kit of part to assemble something
Kraft Dinner, a convenience food product
Kuwaiti dinar, a currency, sometimes represented "K.D." (ISO code KWD)
Kill-death ratio, a statistic in player-versus-player combat multiplayer video games
Wasp dope, a drug sometimes known by the street name KD.