John Forde Cazabon (3 August 1914 – 22 June 1983) was an English actor and stage writer whose career began in Sydney, Australia. Cazabon was born in Hertford, Hertfordshire, to violinist and composer Albert Cazabon (1883–1970) and Norah Cazabon née Delaney, a professional actress born in Australia.

He had an older sister Norah Cazabon and a younger brother Robert Brendan Cazabon (born c. 1919), who was killed in action in 1941. In 1927 the family moved to Sydney, where Albert Cazabon had secured the post of musical director to the Prince Edward Theatre's orchestra, and Gladys, née Curtin, a professional actress born in Australia.