1998 Kilkenny Senior Hurling Championship
The 1998 Kilkenny Senior Hurling Championship was the 104th staging of the Kilkenny Senior Hurling Championship since its establishment by the Kilkenny County Board. The championship began on 26 September 1998 and ended on 1 November 1998.
Dunnamaggin were the defending champions, however, they were defeated by O'Loughlin Gaels in the first round. They were eventually relegated after losing to St. Martin's in a play-off.
On 1 November 1998, Graigue-Ballycallan won the title after a 1-14 to 0-12 defeat of Fenians in the final at Nowlan Park. It was their first ever championship title.
Brendan Ryan from the Fenians club was the championship's top scorer with 1-19.To Championship
Promoted from the Kilkenny Intermediate Hurling Championship
Relegated to the Kilkenny Intermediate Hurling Championship
First round
Relegation play-off
Quarter-finals
Semi-finals
Final
Championship statistics
Top scorers
;Overall
| Rank | Player | County | Tally | Total | Matches | Average |
| 1 | Brendan Ryan | Fenians | 1-19 | 22 | 4 | 5.50 |
| 2 | Ray Heffernan | Glenmore | 1-12 | 15 | 4 | 3.75 |
| 2 | Damien Cleere | Graigue-Ballycallan | 0-15 | 15 | 3 | 5.00 |
| 2 | Jimmy Coogan | Tullaroan | 0-15 | 15 | 3 | 5.00 |
| 3 | Henry Shefflin | Ballyhale Shamrocks | 1-11 | 14 | 2 | 7.00 |
| 3 | Brian McEvoy | James Stehens | 0-14 | 14 | 2 | 7.00 |
| 3 | Alan Geoghegan | O'Loughlin Gaels | 0-14 | 14 | 3 | 4.66 |
| 4 | Adrian Ronan | Graigue-Ballycallan | 2-05 | 11 | 3 | 3.66 |
| 4 | Brian O'Shea | Dunnamaggin | 0-11 | 11 | 2 | 5.50 |
| 5 | Niall Moloney | St. Martin's | 2-04 | 10 | 2 | 5.00 |
| 5 | Denis Byrne | Graigue-Ballycallan | 2-04 | 10 | 3 | 3.33 |
;Single game
| Rank | Player | County | Tally | Total | Opposition |
| 1 | Henry Shefflin | Ballyhale Shamrocks | 1-06 | 9 | Fenians |
| 2 | Denis Byrne | Graigue-Ballycallan | 2-02 | 8 | Tullaroan |
| 2 | Brendan Ryan | Fenians | 1-05 | 8 | Ballyhale Shamrocks |
| 2 | Brendan Ryan | Fenians | 0-08 | 8 | Graigue-Ballycallan |
| 2 | Damien Cleere | Graigue-Ballycallan | 0-08 | 8 | Fenians |
| 3 | Adrian Ronan | Graigue-Ballycallan | 1-04 | 7 | James Stehens |
| 3 | Brian McEvoy | James Stehens | 0-07 | 7 | Young Irelands |
| 3 | Brian O'Shea | Dunnamaggin | 0-07 | 7 | O'Loughlin Gaels |
| 3 | Brian McEvoy | James Stehens | 0-07 | 7 | Graigue-Ballycallan |
| 3 | Damien Cleere | Graigue-Ballycallan | 0-07 | 7 | Tullaroan |
