The Emerald Warriors Rugby Football Club (EWRFC) was set up in late 2003 and is now going in its 5th season. Its membership has grown steadily over that period and can now boast over 40 playing members. The club is managed by a committee and the team is trained by three coaches. In 2006 the club secured its own grounds which are shared with another Dublin based rugby club.

As of this season the Emerald Warriors have become a Junior Club and are competing in the J4 league

As well as domestic fixtures, the Emerald Warriors RFC compete regularly on a UK and European stage. Notably the team has competed in 2007 to win the Union Sevens Trophy in the European Union Cup. The Emerald Warriors first competed in The Bingham Cup in London in 2004 and competed again in New York in 2006. The Warriors are also the current holders of the Dalriada Quaich.