- Inishmurray (Irish: Inis Muireadheach, meaning "Muireadheach's island") is an uninhabited island situated 7 km (4 mi) off the coast of County Sligo, Ireland.
- The island covers .9 square kilometres
- There are remains of an early Irish monastic settlement. Laisrén (Saint Molaise) Mac Decláin reputedly founded a monastery here in the 6th century. He was confessor of Saint Columba (Colmcille) after the Battle of Cúl Dreimhne on the mainland nearby. His feast day is the 12 August.
- The island's ecclesiastical settlement was attacked in 807 by the Vikings
- The enclosure wall is impressive - reaching 4.5 metres (15 ft) in height at its highest point and up to 3 metres (9.8 ft) thick.
- The site contains various ecclesiastical buildings including enclosures, a stone-roofed oratory, two churches, a clochan, a large beehive-shaped cell, a holy well and other remains including cross slabs suggesting foreign influences.
- The whole complex is composed of what is probably local sandstone rubble.
Distance from St Angela’s: 31.3 km (to ferry)