2019 Kilkenny Junior Hurling Championship

The 2019 Kilkenny Junior Hurling Championship was the 109th staging of the competition since its establishment by the Kilkenny County Board in 1905 and ran from 3 September to 20 October 2019.

The competition consisted of 19 teams divided into sections A and B. Section A comprised 12 junior-grade clubs represented by their first-team panels. Section B comprised seven senior/intermediate-grade clubs represented by their second-team panels. Three teams from Section A (quarter-final winners) and one from Section B (final winner) advanced to the combined semi-final stage.

O'Loughlin Gaels defeated Conahy Shamrocks by 117 to 115 in the final on 20 October 2019 at Nowlan Park. As 2019 junior champions they were promoted to the 2020 Kilkenny Intermediate Hurling Championship.

No team was relegated from the 2019 junior championship.

Section A

 * Barrow Rangers
 * Blacks & Whites
 * Cloneen
 * Conahy Shamrocks
 * Emeralds
 * Galmoy
 * Graignamanagh
 * Kilmacow
 * Mooncoin
 * Piltown
 * Slieverue
 * Windgap

Section B

 * Ballyhale Shamrocks
 * Clara
 * Dicksboro
 * James Stephens
 * O'Loughlin Gaels
 * Rower–Inistioge
 * St Patrick's