Duhallow Junior B Hurling Championship

The Duhallow Junior B Hurling Championship is the second highest hurling competition in the Duhallow division in Cork. It is run for teams deemed too weak for Junior A level in the Duhallow division. The championship includes a group stage, so every team has at least two matches. The winners of the Duhallow competition go on to compete in the Cork Junior B Inter-Divisional Hurling Championship.

Newmarket are the title-holders, defeating Dromtarriffe by 0-17 to 1-10 in the 2023 final.

List of finals (incomplete)

 * Q = Duhallow county qualifier