The White Rajahs were a dynastic monarchy of the British Brooke family, who founded and ruled the Raj of Sarawak, located on the north west coast of the island of Borneo, from 1841 to 1946. The first ruler was Briton James Brooke. As a reward for helping the Sultanate of Brunei fight piracy and insurgency among the indigenous peoples, he was granted the province of Kuching, which was known as Sarawak Asal (Original Sarawak) in 1841 and received independent kingdom status.

Based on descent through the male line in accordance with the will of Sir James Brooke, the White Rajahs' dynasty continued through Brooke's nephew and grandnephew, the latter of whom ceded his rights to the United Kingdom in 1946. His nephew had been the legal heir to the throne and objected to the cession, as did most of the Sarawak members of the Council Negri.