John Douglas Morgan (29 November 1907 – 25 August 1967) was a New Zealand track and field athlete who represented his country at the 1938 British Empire Games. He later became a successful athletics coach.

Born in Wellington on 29 November 1907, Morgan was the son of John Stanley Morgan and Emma Ethel Morgan (née Sauvarin).^[1] On 29 November 1928 he married Beatrice May Cole,^[2] and they had two children.^[3]

At the 1938 British Empire Games in Sydney, Morgan finished eighth in the men's discus, with a best throw of 119 ft 11+1⁄2 in (36.56 m).^[4]

Representing West Coast North Island, Morgan won the New Zealand national discus title in 1939, recording a best distance of 129 ft 4 in (39.42 m).^[5]

Morgan later took up coaching, specialising in sprinting and hurdling. He trained athletes including Peter Henderson, Avis McIntosh and Brenda Matthews.^[6]

A glass worker by trade,^[7] Morgan died in London on 25 August 1967.^[3]