Rhys B. Davies (born c.1930) is a former track and field athlete from Wales, who competed at the 1958 British Empire and Commonwealth Games (now Commonwealth Games).
Davies was a member of the Coventry Godiva Harriers and in March 1957, he finished behind Norman Horrell during the 1957 Welsh cross-country championships.
Davies was a physical training teacher, a Welsh international runner and won the marathon at the 1958 AAA Welsh championships.
Davies represented the 1958 Welsh team at the 1958 British Empire and Commonwealth Games in Cardiff, Wales, where he participated in one event; the marathon race.