The defending champions and holders of the Jack Daly Cup were Kilmurry-Ibrickane who won their 12th senior title in October 2017.
In 2017 it was decided that from 2019 onwards the Clare Senior Football Championship would be cut from sixteen to twelve teams. This means that five clubs will lose their senior status and be relegated down to the Clare Intermediate Championship for 2019. The eleven remaining senior clubs will be joined by the 2018 intermediate champions to form the new championship.