Iwig was a 7th-century Christian monk and deacon who was born in Lindisfarne. A follower of Saint Cuthbert, he eventually traveled to Brittany, where he died in Saint-Yvi. During the Middle Ages, he was a significant figure in Wiltshire, England, where he was honored alongside Saint Eadgyth. His presence in the region is linked to the Priory of Ivychurch, which is believed to have taken its name from him.