Treason is a 1959 Australian television live drama, which aired on ABC about the 20 July plot during World War Two. Originally broadcast 16 December 1959 in Melbourne, a kinescope ("telerecording") was made of the program and shown in Sydney on 13 January 1960. It was an adaptation of a stage play by Welsh writer Saunders Lewis, which had previously been adapted as an episode of BBC Sunday-Night Theatre.