St Ultan's Church, Corratinner, Killinkere, has the oldest history. The original church was in the townland of Gallon, about from the present church, and was part of a monastic settlement, dating from the 14th to the 16th century. The site was abandoned sometime between 1590 and 1641. During the penal times, Killinkere had no Roman Catholic place of worship. In 1790, a mud-thatched hut was erected in Killinkere, and in 1829 work on the present church began, which was completed by Christmas Day 1829. There have been a number of notable renovations in the interior during the 1920s, the 1960s and the 1990s.