Pearl Gibbs (Gambanyi) (1901—28 April 1983) was an Indigenous Australian activist, and the most prominent female activist within the Aboriginal movement in the early 20th century. She was a member of the Aborigines Progressive Association (APA), and was involved with various protest events such as the 1938 Day of Mourning.Gibbs was born Pearl Mary Brown in La Perouse, Sydney, in 1901, to Mary Margaret Brown and David Barry.