The Carbery Junior A Hurling Championship (known for sponsorship reasons as the RCM Tarmacadam Carbery Junior A Hurling Championship) is an annual club hurling competition organised by the West Cork Board of the Gaelic Athletic Association and contested by the top-ranking junior clubs in West Cork, Ireland, deciding the competition winners through a group stage and knockout format.

The competition took on its current format in 2022, adding a round-robin group stage and limiting the number of entrants.

In its current format, the Carbery Junior Championship begins with a group stage in late summer.

The teams are ranked in the group stage table by points gained, then scoring difference and then their head-to-head record.

Semi-finals: The two quarter-final winners and the top two highest-placed qualifying teams from the group stage contest this round.

A native of Clonakilty, John "Flyer" Nyhan (1892-1934) was a member of some excellent Clonakilty teams which contested the county middle grade hurling final in 1912, won the county intermediate football title in 1913 and then won the prestigious South Coast Railway Shields in both football and hurling in 1914.

Club sides Argideen Rangers, Ballinascarthy and O'Donovan Rossa also hold the distinction of being dual divisional junior championship-winning teams, however, these were not achieved in a single calendar season.