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A KO is a knockout in various sports, such as boxing and martial arts.

K.O., Ko or may also refer to:

Arts and entertainment[edit]


  • KO (musician), Canadian musician who plays a fusion of hip hop and folk music
  • Karen O (born 1978), lead singer of the rock group "Yeah Yeah Yeahs"
  • Kevin Olusola, American cellist and beatboxer who is a member of the a cappella group Pentatonix
  • K.O., an album by Rize (band)

Other media[edit]




  • 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
  • , an urban boulevard in Düsseldorf, Germany

Science and technology[edit]


Other uses[edit]

See also[edit]