The 2008 Christy Ring Cup was the 4th annual second tier hurling competition organised by the Gaelic Athletic Association. Carlow beat Westmeath in the final after extra time. Carlow were beaten by Laois the bottom team in the Liam McCarthy Cup and played in the Christy Ring Cup again the following year as a result.
Twelve teams participated in the 2008 Christy Ring Cup.
Each team in the group played each other once in the first phase. The top two teams in each group advanced to the quarter-finals. The bottom team in each group went into the relegation play-offs.
Due to a restructuring of the hurling championships the following year, the relegation playoffs were subsequently rendered meaningless as all four teams involved were relegated to the Nicky Rackard Cup for 2009.