George Reynolds McCubbin DSO (18 January 1898 – 9 May 1944) was a South African Royal Flying Corps (RFC) pilot who shot down the German ace Max Immelmann.

Born in South Africa, McCubbin joined the British Empire forces in the East African campaign after the outbreak of the First World War.

For this, and an earlier occasion when his aircraft shot down a German plane, McCubbin was awarded the Distinguished Service Order.

His parents were Lucy and David Aitken McCubbin, who was the Liverpool-born chief architect for South African Railways.

[1][5] McCubbin was commended for his actions in two aerial dogfights and received the Distinguished Service Order (DSO) on 27 July 1916 for his role in these.

[8][7] McCubbin, returning from a bombing raid in a Royal Aircraft Factory F.E.2, spotted the engagement and recrossed into German-held territory to join the fight.

McCubbin was badly wounded in the arm (the bullet entering his shoulder and travelling down his forearm) but his gunner-observer, Corporal James Henry Waller, opened fire at close range.

The Germans regarded it as embarrassing that Immelmann was shot down by a British aircraft and so stated that he had been killed by friendly anti-aircraft fire.

It is also sometimes stated that he was downed by a failure of his aircraft's synchronisation gear, causing his machinegun to shoot off the tips of his own propeller.

[18] In the second match at Bulawayo he met with some success, scoring 97 runs batting at number 10 in a 221-run stand for the ninth wicket with Neville Lindsay, which at the time was a record in first-class cricket in South Africa.