Saint Urielle was a 7th-century Christian saint from the Armorica region, also referred to as Eurielle, Curielle, or Arielle. According to Breton tradition, she was a daughter of the legendary king Hoël III (often identified with Judaël) and his wife Pritelle. As a member of a royal family, she was the sister of several other saints, including Onenne and Judicael. She is remembered as a holy princess who lived a life of deep devotion to her faith.