Avitus of Rouen (died 325), also known as Avitien or Avidien was the second bishop in Rouen. He is also considered to be a Saint by the Roman Catholic Church
Biography
He was the Third bishop of Rouen in Normandy, however his two predecessors are known largely as légende. He is the first bishop historically attested by his presence, with Materne II, bishop of Cologne, at the first Council of Gaul in Arles in 314. He succeeds Mellonius and settles in Rouen from 314.
The Acta archiepiscoporum Rotomagensium tell us that "this blessed pontiff was an honest spirit, impeccable in his manners, and attentive to the salvation of souls under his charge".
He is buried in the crypt of the Saint-Gervais church of Rouen, and his feast day is celebrated on 2 décember.