Saint Brendan of Clonfert or Bréanainn of Clonfert (c. 484 – c. 577) (Irish: Naomh Breandán; Icelandic: Brandanus) called "the Navigator", "the Voyager", or "the Bold" is one of the early Irish monastic saints. He is chiefly renowned for his legendary quest to the "Isle of the Blessed," also called Saint Brendan's Island. The Voyage of Saint Brendan could be called an immram (Irish navigational story). He was one of the Twelve Apostles of Ireland.
Saint Brendan's feast day is celebrated on 16 May by Catholics, Anglicans, and Eastern Orthodox Christians.