Mo Lua of Killaloe was a 6th-century Irish monk and abbot who lived during the Early Middle Ages. Originally named Lughaidh, he received his religious training at the monastery in Bangor, County Down. He is primarily recognized as the founder of Killaloe, a settlement that carries his name. As a leader of his monastic community, he established an oratory on Friar's Island, which was eventually succeeded by a stone church near the modern village of Killaloe.