Clonca Church & Cross, is a historic monument located in Inishowen, County Donegal.
It is one of the most important and popular historical sites in Inishowen. At 54°43′05″N it is the northernmost of Ireland’s National Monuments.
The 17th or 18th century Church of Ireland stands on the site of a monastery founded around the 6th century by St. Baudan. The lintel over the doorway with worn carvings of ecclesiastics is part of an older church. Inside lies the tombstone of Magnus MacOrristin, probably a Scotsman from the Hebrides. In the field opposite the entrance to the church are two crosses. One of them is lying down, while the other is standing upright. The cross that stands shows the Miracle of the loaves and fishes, and other less identifiable scenes.