Theodgar of Vestervig

Theodgar of Vestervig (in German Dieter von Vestervig, in Danish Thøger, also Dietger, Dioter or Theodgardus) was a missionary from Thuringia who worked mostly in Jutland in Denmark. He died on 24 June, in or about 1065, and is venerated there as a saint.

He studied theology in England, then traveled as a missionary to Norway, where King Olav II Haraldsson attached him to his court. After the king's death, Theodgar left Norway and worked as a missionary on the Jutland peninsula, where he died. His remains were translated on 30 October 1117 to the church of the Augustinian Vestervig Abbey.

He is a saint of the West, who died after the separation of the Churches in 1054, but before 1066; no Orthodox synodal canonization is known.