[1] Kilkenny were the defending champions having defeated Dublin in the 2021 final.

[2][3] Promoted from the Joe McDonagh Cup Relegated to the Joe McDonagh Cup The Leinster championship was contested by five counties from the Irish province of Leinster, as well as one county from the province of Connacht, where the sport is only capable of supporting one county team at this level.

Antrim beat Kerry in the 2022 Joe McDonagh Cup final and were promoted to the 2023 Leinster Senior Hurling Championship.

Laois were relegated to the 2023 Joe McDonagh Cup as they finished last in the 2022 Leinster Senior Hurling Championship.

Kilkenny advanced to the 2022 All-Ireland SHC Semi-Finals, while Galway advanced to the 2022 All-Ireland SHC Quarter-Finals.