John Heywood is a former weightlifter from Wales, who competed at the 1958 British Empire and Commonwealth Games (now Commonwealth Games).
Heywood from Llansamlet, won the 1955 Welsh national title.
In March 1958, he participated in the Welsh Olympic Championships and Empire Games trials and was one of the 7 athletes (out of 26) that was short-listed for the Games.
Heywood subsequently represented the 1958 Welsh team at the 1958 British Empire and Commonwealth Games in Cardiff, Wales, where he participated in the 60kg featherweight category.