Roman Catholic Diocese of Kildare and Leighlin

The Diocese of Kildare and Leighlin (; Latin: Dioecesis Kildarensis et Leighlinensis; Irish: Deoise Chill Dara agus Leithghlinn) is a Latin Church diocese of the Catholic Church in eastern Ireland. It is one of three suffragan dioceses in the ecclesiastical province of Dublin and is subject to the Archdiocese of Dublin.