The 2003–04 All-Ireland Senior Club Hurling Championship was the 34th staging of the All-Ireland Senior Club Hurling Championship, the Gaelic Athletic Association's premier inter-county hurling tournament for senior clubs.

Birr were the defending champions but were defeated by O'Loughlin Gaels in the Leinster final.

On 17 March 2004, Newtownshandrum won the championship following a 0-17 to 1-6 defeat of Dunloy in the All-Ireland final.

Newtownshandrum's Ben O'Connor was the championship's top scorer with 0-47.

The build-up to the opening of the championship was dominated by Birr and the possibility that they would become the first club to win three All-Ireland titles in-a-row, and a record-breaking fifth championship title over all.