Sir Alan James Mansfield, was an Australian barrister, judge, and the 18th Governor of Queensland, serving from 1966 until 1972.

The Governor of Queensland is the representative of the monarch, currently King Charles III, in the state of Queensland. In an analogous way to the governor-general at the national level, the governor performs constitutional and ceremonial functions at the state level. In particular the governor has the power to appoint and dismiss the premier of Queensland and all other ministers in the Cabinet, and issue writs for the election of the state parliament.