Gareth Owen Llewellyn (born 27 February 1969), is a Welsh former rugby union player who gained a record 92 caps for Wales as a lock.
His brother, Glyn Llewellyn, also played international rugby union for Wales.
After excelling in the line-out for Neath in their match against the touring New Zealand All Blacks on 25 October 1989, he made his debut for Wales ten days later against the same opposition and went on to win a total of 92 caps, breaking the record of 87 held by Neil Jenkins in the test against Argentina on 12 June 2004.
From the beginning of the 2008–09 season, Llewellyn combined playing with a coaching role at Welsh First Division club Tonmawr.
[1] Since the 2009–10 season he is head coach at South West One West side Thornbury RFC working alongside Bristol's Darren Crompton and Rob Higgitt formerly of Bristol Rugby, the Scarlets and Worcester RFC.