Hoel II of Cornouaille (c. 1031–1084) is Count of Kernev (French: Cornouaille, Breton: Kernev), from 1058 as Hoel V, and after his marriage to Hawise, Duchess of Brittany, in 1066, he becomes duke of Brittany jure uxoris, i.e.
as the Duchess's Consort.
Hoel inaugurates the House of Kernev (Cornouaille) of Brittany, which rules the Duchy until 1156.
