Llewellyn made his debut for Wales against England in 1899, alongside Welsh greats Billy Bancroft and Gwyn Nicholls.
It was an impressive display from Llewellyn and the team, with England thoroughly beaten and Llewellyn scoring four tries.
Llewellyn scored again on his second game, which was against Scotland, and should have scored on his third match when he faced Ireland but for a poor choice by team mate Reg Skrimshire.

Llewellyn was part of the 1900, 1902 and 1905 Triple Crown winning sides, but his true moment of glory was being part of the great Welsh side of 1905 which beat the Original All Blacks.
 He was considered a poor choice for the game by many critics as at the time of the game he had switched to Penygraig, a junior club, and he was considered too old for the wing.
An uncharacteristic fumble within distance of the try line may have proven his detractors correct, but it did not affect the end result and his marking of the All Black Billy Wallace was noted as being ruthlessly impressive.
Llewellyn made his debut for Wales against England in 1899, alongside Welsh greats Billy Bancroft and Gwyn Nicholls. It was an impressive display from Llewellyn and the team, with England thoroughly beaten and Llewellyn scoring four tries. Llewellyn scored again on his second game, which was against Scotland, and should have scored on his third match when he faced Ireland but for a poor choice by team mate Reg Skrimshire.
Llewellyn was part of the 1900, 1902 and 1905 Triple Crown winning sides, but his true moment of glory was being part of the great Welsh side of 1905 which beat the Original All Blacks.  He was considered a poor choice for the game by many critics as at the time of the game he had switched to Penygraig, a junior club, and he was considered too old for the wing. An uncharacteristic fumble within distance of the try line may have proven his detractors correct, but it did not affect the end result and his marking of the All Black Billy Wallace was noted as being ruthlessly impressive.
Willie Llewellyn