Ko

KO is a knockout 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 KO (song), 2025 song by NLE Choppa K.O., a 2008 album by Rize "K.O.", a 2004 song by Smujji