John Creyghton Ainsworth-Davies (April 23, 1895 - January 3, 1976) was a British athlete, winner of gold medal in 4x400 m relay at the 1920 Summer Olympics.
At the Antwerp Olympics in 1920, John Ainsworth-Davies finished fifth in 400 m and ran the third leg in the British 4x400 m team, which won the gold medal in 3:22.2.
