This is an Icelandic name. The last name is a patronymic, not a family name; this person is referred to by the given name Jón Óskar.
Jón Óskar Ásmundsson (18 July 1921, in Akranes – 20 October 1998, in Reykjavík) was an Icelandic poet born in Akranes.
Jón Óskar is typically categorised as one of the Icelandic Atom Poets. In addition to his poetry he and his short stories, literary articles and a novel he also produced a multi-volumed biography. He was a musician and this influenced the sound of his poetry. Recurring themes in his work are daily life in general but also and in particular 'love'. He also translated some French poetry into Icelandic.
^ Neijmann, Daisy L. ed (2007) A History of Icelandic Literature, University of Nebraska Press, Lincoln, Nebraska
ISNI: 0000 0000 2012 1660
BNF: cb11990616r (data)