Captain Sir William Alexander Dargie CBE (4 June 1912 – 26 July 2003) was a renowned Australian painter, known especially for his portrait paintings.

During World War II, he served with the Australian Army in the Middle East, New Guinea, India and Burma, rising to the rank of Captain.

[3] In December 1954, he was commissioned by Melbourne industrialist James P. Beveridge to paint Australia's official portrait of the Queen, who posed for him at Buckingham Palace.

Under the terms of the 1954 Australian Citizenship Convention, a print of the work was generally present in local town halls, where many naturalisation ceremonies took place.

Other famous Australians who sat for him included Sir Charles Kingsford Smith, Dame Enid Lyons and Margaret Court.