Sir Ernest Hillas Williams JP (16 August 1899 – 5 February 1965) was an Irish judge who served as a British Empire colonial official based for most of his career in British Hong Kong and later also the second Chief Justice of the Combined Judiciary of Sarawak, North Borneo and Brunei.

[2] Following the events of World War II, Williams was sent to British Borneo and succeeded Sir Ivor Llewellyn Brace as Chief Justice of the Combined Judiciary of Sarawak, North Borneo and Brunei.

[1] Williams was also a sergeant in the Hong Kong Volunteer Defence Corps.

[3] Williams was a prisoner of war (POW) held at a camp in Sham Shui Po Barracks before later being moved to Innoshima, Hiroshima Prefecture by the Imperial Japanese Army.

[1][4][5][6] Williams died in early February 1965 whilst in the town of Málaga, Spain.