A KO is a

knockout A knockout (abbreviated to KO or K.O.) is a fight-ending, winning criterion in several full-contact combat sports, such as boxing, kickboxing, Muay Thai, mixed martial arts, karate, some forms of taekwondo and other sports involving striking, ...

in various sports, such as boxing and martial arts. K.O., Ko or Kō may also refer to:

Arts and entertainment

Music

* KO (musician), Canadian musician who plays a fusion of hip hop and folk music * ''K.O.'' (album), a 2021 album by Danna Paola * ''Ko'' (soundtrack), for the 2011 Indian film (see below) by Harris Jayaraj * K.O (rapper), South African rapper Ntokozo Mdluli * Karen O (born 1978), lead singer of the rock group Yeah Yeah Yeahs * Kevin Olusola, American cellist, beatboxer and member of ''a cappella'' group Pentatonix * K.O. (song), a song by Pabllo Vittar * ''K.O.'', a 2008 album by

Rize Rize (; ; ; ka, რიზე}; ) is a coastal city in the eastern part of the Black Sea Region of Turkey. It is the seat of Rize Province and Rize District.Smujji

Other media

* Ko (Go), in the board game ''Go'' * ''Ko'' (film), a 2011 Indian Tamil-language action film by K. V. Anand * '' Knight Online'', a 2004 online role-playing game

Language

* Ko language * Ko (kana), the romanization of the Japanese kana こ and コ * ISO 639-1 code for the

Korean language Korean is the first language, native language for about 81 million people, mostly of Koreans, Korean descent. It is the national language of both South Korea and North Korea. In the south, the language is known as () and in the north, it is kn ...

Surname

* Ko (Korean surname) *

Gao (surname) Gao () is an East Asian surname of Chinese origin that can be literally translated as "high" or "tall". There are approximately 17 million living people with this surname. Some places, such as Taiwan, usually romanise this family name into "Kao". I ...

, a surname of Chinese origin romanized to Ko in Hong Kong, and in several romanizations especially in South-east Asia *

Ke (surname) Ke () is a Chinese surname. It originally appeared on the Hundred Family Surnames. As of 2006 was no longer one of the top 100 most common surnames. A 2013 study found that it was the 145th most common surname, shared by 1.06 million people or 0.080 ...

, a Chinese surname romanized as "Ko" in the Wade–Giles system *

Xu (surname 許) Xu () is a Chinese surname. In the Wade-Giles system of Romanization of Chinese, romanization, it is romanized as Hsu, which is commonly used in Taiwan. Variations Sinitic languages * Cantonese: Heoi (Jyutping), Héui (Yale romanization of Can ...

, a surname of Chinese romanized as Ko in the Teochew dialect

People

* K.O (rapper) South African musician and businessman * KO (musician), Canadian musician who plays a fusion of hip hop and folk music * Ko Simpson (born 1983), professional American football player for the Buffalo Bills * Kevin Owens, Canadian professional wrestler * Yi Ko (died 1171), Korean military ruler

Places

* Ko Mountain, the second-highest peak in the Sikhote-Alin Mountains of Russia * Ko. Madhepura, Nepal, a village development committee * Ko, Lamphun, Thailand, a village and subdistrict * Kö, an urban boulevard in Düsseldorf, Germany

Science and technology

* Ko, an ancient Chinese weapon also known as a dagger-axe in English * Kō, a version of the foot plough used by the Māori people *

Gene knockout Gene knockouts (also known as gene deletion or gene inactivation) are a widely used genetic engineering technique that involves the gene targeting, targeted removal or inactivation of a specific gene within an organism's genome. This can be done t ...

, a molecular biology genetic technique, abbreviated KO *

Knowledge organization Knowledge organization (KO), organization of knowledge, organization of information, or information organization is an intellectual discipline concerned with activities such as document description, indexing, and classification that serve to ...

, branch of information science ** ''Knowledge Organization'', an academic journal published by the International Society for Knowledge Organization * kilo

octet (computing) The octet is a unit of digital information in computing and telecommunications that consists of eight bits. The term is often used when the term '' byte'' might be ambiguous, as the byte has historically been used for storage units of a varie ...

, a unit of information or computer storage *

Loadable kernel module A loadable kernel module (LKM) is an executable library that extends the capabilities of a running kernel, or so-called ''base kernel'', of an operating system. LKMs are typically used to add support for new hardware (as device drivers) and/or ...

(file extension .ko) * Real ''K''-theory

Transportation

* Kō Station (Aichi) on the Meitetsu Nagoya Main Line in Japan * Kō Station (Tokushima) on the Tokushima Line in Japan * Alaska Central Express, IATA airline designator

Other uses

The Coca-Cola Company The Coca-Cola Company is an American multinational corporation founded in 1892. It manufactures, sells and markets soft drinks including Coca-Cola, other non-alcoholic beverage concentrates and syrups, and alcoholic beverages. Its stock is lis ...

, stock ticker symbol and corporate internet domain ko.com *

Civic Coalition (Poland) The Civic Coalition (, KO) is a big tent political alliance currently ruling in Poland. The alliance was formed in 2018 around Civic Platform, in opposition to the then-ruling Law and Justice (PiS) party. History The Civic Coalition was origi ...

, or Koalicja Obywatelska (KO), a Polish electoral alliance * Knock-off, a

counterfeit A counterfeit is a fake or unauthorized replica of a genuine product, such as money, documents, designer items, or other valuable goods. Counterfeiting generally involves creating an imitation of a genuine item that closely resembles the original ...

product * Kelly Oils Ltd, a fuels merchant in Northern Ireland * Kemetic Orthodoxy, a religion * Contracting Officer, US government acronym KO or CO * K.O., protagonist in '' OK K.O.! Let's Be Heroes'' * Ko Ukumori, a character in the air combat game '' The Sky Crawlers: Innocent Aces'' * Dukkha, the concept of unsatisfactoriness in Buddhism * Kick-off (association football), the time or manner of start of play * Kō, Japanese for incense; see

Japanese incense The burning of incense in Japan began during the 6th century (the Asuka period) with the introduction of Buddhism, which uses incense during rituals and ceremonies. Agarwood was imported into Japan from China via Korea. From that point on, ince ...

Kōdō is the art of appreciating Japanese incense, and involves using incense within a structure of codified conduct. ''Kōdō'' includes all aspects of the incense process, from the , to activities such as the incense-comparing games and . ''Kōdō ...

, the art of appreciating Japanese incense * Momofuku Ko, a New York restaurant