Thomas Ellis Jones-Davies (4 March 1906 – 25 August 1960) was a Welsh physician and international rugby union centre.

After the war he was appointed a consultant physician at the West Wales Hospital, Carmarthen, a position he held for ten years until his death.

Playing alongside London Welsh stalwart Wick Powell, Jones-Davies finished on the winning side as Wales beat Ireland, robbing them of the Triple Crown.

Under the captaincy of Penarth's Jack Bassett, Jones-Davies was a member of the Welsh team that drew with England at Twickenham and beat Scotland at the Arms Park.

Jones-Davies was one of seven Welsh players chosen to represent the Lions on the tour, but unlike his countrymen he did not play in any of the five test games.