Rhys Ruddock (born 13 November 1990) is a professional rugby union player. He currently plays for St Mary's College RFC and Leinster. He plays in the backrow, at 6 or 8. In the 2009/2010 season, he captained the Irish U20s to winning the Six Nations Championship. Ruddock was part of the Ireland squad for the 2012 Six Nations tournament. Meanwhile, with Leinster, he became their youngest ever captain against Arioni in the Magners League, when he was still playing for UCD's under-20 side.