St. Colman of Kilmacduagh was an Irish saint who lived during the 7th century. He is best known for founding the monastic site of Kilmacduagh in County Galway, Ireland. This site became an important center for learning and spirituality in early medieval Ireland, attracting many followers and scholars. Colman is often associated with the Diocese of Kilmacduagh, which he established. His legacy includes the impressive Kilmacduagh Cathedral and several other churches in the area. He is celebrated for his piety and dedication to monastic life, and his feast day is observed on June 29.