John Rees Black (born 26 January 1952) is a former Australian politician. Born in Sydney, he was a journalist and industrial advocate before entering politics. In 1984, he was elected to the Australian Senate as a Labor Senator for Queensland. He remained a Senator until his defeat in 1990. John Black chaired the Senate Inquiry into "Drugs in Sport" which reported to Parliament in May 1989. This report provided the initial reference report on this important issue.