The 1948 Kilkenny Senior Hurling Championship was the 54th staging of the Kilkenny Senior Hurling Championship since its establishment by the Kilkenny County Board in 1887. The draw for the first round fixtures took place on 14 March 1948. The championship ran from 18 April to 22 August 1948.
Éire Óg were the defending champions, however, they were beaten by Tullaroan in the semi-final.
The final was played on 22 August 1948 at Nowlan Park in Kilkenny, between Tullaroan and Carrickshock, in what was their third meeting in the final. Tullaroan won the match by 1–12 to 2–03 to claim their 18th championship title overall and a first title in 14 years.
Results First round
Second round
Semi-final
Final
References