The 2023 Offaly Senior Hurling Championship was the 125th staging of the Offaly Senior Hurling Championship since its establishment by the Offaly County Board in 1896. The draw for the group stage placings was made on 20 March 2023. The championship ran from 7 July to 15 October 2023.
Shinrone entered the championship as the defending champions.
The final was played on 15 October 2023 at Grant Heating St Brendan's Park in Birr, between Kilcormac–Killoughey and Shinrone, in what was their second consecutive meeting in the final. Kilcormac–Killoughey won the match by 3–26 to 3–08 to claim their fifth championship title overall and a first title in six years.
Ballinamere's Brian Duignan was the championship's top scorer with 1-38.
