The Dublin Junior Hurling championship is the Junior Gaelic Athletic Association hurling competition of Dublin. The winners of the Junior championship go on to qualify for the Dublin Intermediate Hurling Championship in the following year. The winner will also represent Dublin GAA in the Special Section of the Leinster Junior Club Hurling Championship.
At the end of the championship, the winning team qualify to the subsequent Leinster Junior Club Hurling Championship.
<small>A - Cuala Casements and Dalkey Mitchels merged to become Cuala in 1974</small>
The 2020 Junior F Hurling Final was played between Castleknock and Fingallians in O'Toole Park.
The first ever Junior G Hurling Championship between St Vincents and Thomas Davis was never played due to the Government COVID-19 restrictions. The 2021 Final was played between St Monica's and St Vincent's
The first ever Junior H Hurling Championship Final was between Round Towers Clondalkin and Portobello