O'Callaghan's Mills (Irish: Muillte Uí Cheallacháin), also O'Callaghansmills,[1] is a village in County Clare, Ireland, and a Catholic parish by the same name.

[3] The village of O'Callaghan's Mills is in east County Clare, about halfway between Ennis and Lough Derg.

They were displaced from the Mallow area of Cork in confiscations during the Cromwellian conquest of Ireland in the 1650s when they lost 24,000 acres (97 km2), 20,000 of which was deemed to have been the property of the ruling chief, Donncha O'Callaghan.

[citation needed] There is a tradition that two priests of the Congregation of the Mission, or Vincentians, escaped from the 1651 siege of Limerick by Oliver Cromwell's troops, and for several years ministered to the people of the parish near the present church of St Vincent de Paul in Oatfield.

[2] O'Callaghan Mills GAA club has won the Clare county hurling championship on eight occasions.

[citation needed] O'Callaghan's Mills was home to former athlete, politician and GAA administrator Tim Smythe (1905-1982).