Sergeant Demosthenes Demades was a Greek pilot of the Royal Air Force Volunteer Reserve who died during the Second World War.

He was born the son of Captain Anthony and Zinovia Demades, of Piraeus, Greece. Demades died on 11 October 1943, aged 24, when his Supermarine Spitfire crashed during flight practice.

Demades is buried in Brookwood Military Cemetery, Surrey.

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