The 1974 All-Ireland Senior B Hurling Championship was the first staging of the All-Ireland Senior B Hurling Championship, the Gaelic Athletic Association's secondary inter-county hurling tournament. The championship began on 12 May 1974 and ended on 23 June 1974. On 23 June 1974, Kildare won the championship following a 1-26 to 3-13 defeat of Antrim in the All-Ireland final. This was their fourth All-Ireland title in hurling, following on from earlier successes in the intermediate and junior grades. The prize for the winners was a place in the All-Ireland Senior Hurling Championship.