| 2023 Kilkenny Premier Junior Hurling Championship | |
| Dates: | 19 September 21 October 2023 |
| Teams: | 22 |
| Sponsor: | JJ Kavanagh and Sons |
| Champions: | Tullogher-Rosbercon |
| Count: | 6 |
| Runners-Up: | St. Lachtain's |
| Previous Year: | 2022 |
| Previous Tournament: | 2022 Kilkenny Premier Junior Hurling Championship |
| Next Year: | 2024 |
| Next Tournament: | 2024 Kilkenny Premier Junior Hurling Championship |
The 2023 Kilkenny Premier Junior Hurling Championship was the 113th staging of the competition since its establishment by the Kilkenny County Board in 1905 and ran from 19 September to 21 October 2023.
The competition consisted of 22 teams divided into sections A and B. Section A comprised 13 junior-grade clubs represented by their first-team panels. Section B comprised nine 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. [1]
Tullogher–Rosbercon defeated St. Lachtain's by 119 to 017 in the final on 21 October 2020 at Nowlan Park, Kilkenny. [2] As 2023 junior champions they were promoted to the 2024 Kilkenny Intermediate Hurling Championship.