The 2003 All-Ireland Intermediate Hurling Championship was the 20th staging of the All-Ireland Intermediate Hurling Championship since its establishment by the Gaelic Athletic Association in 1961. The championship ran from 18 May to 30 August 2003.
Galway entered the championship as the defending champions, however, they were beaten by Cork in the All-Ireland semi-final.
The All-Ireland final was played at Semple Stadium in Thurles on 30 August 2003 between Cork and Kilkenny, in what was their first ever meeting in the final. Cork won the match by 1-21 to 0-23, after extra time, to claim a fourth championship title overall and a first title in two years.
Cork's Jonathan O'Callaghan as the championship's top scorer with 0-29.