The 2018 Antrim Senior Hurling Championship was the 118th staging of the Antrim Senior Hurling Championship since its establishment by the Antrim County Board in 1901. The draw for the group stage placings took place on 30 January 2018. The championship ran from 12 August to 28 October 2018.
Cúchulains Dunloy entered the championship as the defending champions, however, they were beaten by Loughgiel Shamrocks in the semi-finals.
The final was played on 28 October 2018 at Páirc Mac Uílín in Ballycastle, between RuairÍ Óg, Cushendall and Loughgiel Shamrocks, in what was their first meeting in the final in two years. RuairÍ Óg, Cushendall won the match by 2–12 to 0–15 to claim their 14th championship title overall and a first title in three years.
Team changes
To Championship
Promoted from the Antrim Intermediate Hurling Championship
Patrick Sarsfields
From Championship
Regraded to the Antrim Intermediate Hurling Championship
Clooney Gaels
Creggan Kickhams
St Brigid's, Cloughmills
Qualifying stage
Preliminary round
St John's won 7–38 to 3–28 on aggregate.