Knockout was the name of two British comic books. The first ran from (issues dates) 4 March 1939 to 16 February 1963, when it merged with Valiant. Magnet merged with it in 1940, followed by Comic Cuts in 1953.
The second ran from (issues dates) 12 June 1971 to 23 June 1973, when it merged with Whizzer and Chips. Its strips included:
