The 2008–09 All-Ireland Senior Club Hurling Championship was the 39th since the establishment of the competition by the Gaelic Athletic Association in 1970–71.

Portumna went into the 2008 championship as defending champions, having won their second All-Ireland title the previous year.

The championship culminated with the All-Ireland final, held at Croke Park, Dublin.

Each of the sixteen participating counties enter their respective club champions.

The format of the competition was as follows: Sixteen county club champions participated in the 2008–09 championship.