Beuno is a Welsh saint known for his missionary work in the 6th century. He is often associated with the region of North Wales and is believed to have founded several churches, contributing to the spread of Christianity in the area. His feast day is celebrated on April 21. Beuno is also recognized for his connection to the Beuno's Well in Gwynedd, which is said to have healing properties. Many legends surround his life, including stories of miracles and encounters with other saints, highlighting his importance in Welsh religious history.