Sir Richard Arthur Blackburn, (26 July 1918 – 1 October 1987) was an Australian judge, prominent legal academic and military officer. He became a judge of three courts in Australia, and eventually became chief justice of the Australian Capital Territory. In the 1970s he decided one of Australia's earliest Aboriginal Land rights cases. His service to the Australian legal community is commemorated by the annual Sir Richard Blackburn Memorial lectures in Canberra.