The 2023 Cork Premier Junior Football Championship was the inaugural staging of the Cork Premier Junior Football Championship. The draw for the group stage placings took place on 11 December 2022. The championship ran from 29 July to 28 October 2023.
The final was played on 28 October 2023 at Páirc UàChaoimh in Cork, between St Finbarr's and Kilmurry, in what was their first ever meeting in the final. St Finbarr's won the match by 3-06 to 1-11 to claim their first ever championship title in the grade.
Cobh's Diarmuid Kearney was the championship's top scorer with 3-13.
Promoted from the Cork Junior A Football Championship
Relegated from the Cork Intermediate A Football Championship