Thomas Mervyn Davies OBE (9 December 1946 – 15 March 2012),[5][6] often known as "Merv the Swerve", was a Welsh rugby union player who won 38 caps for Wales as a No.

Tall and slight of frame, he grew a Mexican moustache to make himself appear more aggressive on the rugby field.

Colin Meads said Davies was "the one player who probably had the biggest impact on that 1971 Lions Test series," particularly as he prevented NZ winning line out ball via Brian Lochore.

Davies key attributes were lineout play, ball handling skill (including offloading in tight situations), commitment, mental strength, and anticipation.

[15] Following the second incident he was a patient in the University Hospital of Wales for several months, and received goodwill messages from all over the world.