Sir Claude Dixon Gibb KBE FRS (29 June 1898 – 15 January 1959) was a South Australian engineer with a considerable career in Great Britain.

He had served three years (another reference has him working for the Adelaide Cement Company at this time)[4] when he enlisted with the 2nd AIF on 5 December 1917, and posted to the Australian Flying Corps, a unit of the Royal Air Force which saw action in France.

[5] He took his mechanical and electrical engineering diploma at the School of Mines in 1922[6] and began lecturing there, then transferred to the University of Adelaide and earned his BE degree in 1923 under Sir Robert Chapman,[4] whom he named "'the greatest teacher there has ever been in engineering".

[6] On the basis of his thesis he won an Angas Engineering Scholarship at the University of Adelaide in 1924,[7] which entitled him to £500 and two years of study abroad.

In 1941, Lord Beaverbrook appointed him Director-General of Weapons in the Ministry of Supply in charge, under Admiral Sir Harold Brown, Director General of Munitions Production, of 3,000 engineering firms and 250,000 workers.