KM, Km, or km may stand for:
Businesses KM Group, a multimedia group based in Kent Kennis Music, a record label Kia Motors, an automobile manufacturer Kmart (former stock symbol "KM") Konica Minolta, a manufacturer of electronics KM Malta Airlines, the flag carrier of Malta
Organisations Kabataang Makabayan, a youth organization in the Philippines Kerry Militia, military organization of volunteer soldiers from County Kerry in Ireland Knight of Malta (disambiguation), a Christian order of knighthood Kaiserliche Marine, navy of the German Empire Kriegsmarine, name of the German navy during the Nazi regime Koninklijke Marine, Dutch name of the Royal Netherlands Navy Kraljevska mornarica, navy for the Kingdom of Yugoslavia
Places Kamenz (district), Germany (license plate indication) Messenia, Greece (license plate indication) KM Junction, West Virginia Comoros, country (ISO 3166-1 code KM) Kysucké Nové Mesto, town in Slovakia (district code KM) Kosovska Mitrovica, town in Serbia Kosovo and Metohija, an autonomous province in Serbia (ISO 3166-2 code RS-KM)
Science, technology, and mathematics Kilometre (km), SI unit of distance .km, Internet top-level domain (ccTLD) for Comoros Km, an electric motor constant Kaplan–Meier estimator, a non-parametric statistic used to estimate the survival function Kelley–Morse set theory, in mathematics, a set theory Kernel methods, a set of computer science algorithms KM, the Michaelis constant in Michaelis–Menten kinetics Knowledge management, a range of techniques to identify, represent, and distribute knowledge KM-mount, a Konica camera rangefinder mount KM, a Soviet ground-effect vehicle, nicknamed the "Caspian Sea Monster"
Other uses Km (hieroglyph) Kapal motor (motor vessel) in Indonesian ship naming conventions Kevin Matthews (wrestler), Kevin Matthew McDonald (b. 1983) Khmer language (ISO 639 alpha-2 code "km") Bosnia and Herzegovina convertible mark, currency of Bosnia and Herzegovina Knight of the Sovereign Military Order of Malta, a chivalric order Krause-Mishler numbers for the Standard Catalog of World Coins