Haakon VI Magnusson (appr. 1340-1380), King of Norway, son of King Magnus Ericsson of Sweden and Norway and Blanche of Namur. In 1343 he succeded his father to the Norwegian throne, who would still rule during his minority. In 1363 he married Margaret of Denmark daughter of King Waldemar Atterdag of Denmark. In 1370 they had the son Olav who would succeed his grandfather to the Danish throne in 1376.

In 1380 King Haakon, the son of King Magnus of Sweden, died and was succeded by his own son King Olav of Denmark.