Harold Joseph Thomas (born c. 1947) is an Indigenous Australian descended from the Luritja people of Central Australia. An artist and land rights activist, he is best known for designing and copyrighting the Australian Aboriginal Flag.Thomas designed the flag in 1971 as a symbol of the Indigenous land rights movement. In 1995 the flag was made an official "Flag of Australia". Later he was involved in a high-profile case in the Federal Court and the High Court, to assert copyright over his design.