She made her literary debut in 1998 with a collection of poems "Slaven av blåbæret" (t: Slave of the Blueberry).
Her second book, Knutar (t: Knots), a collection of short stories, proved very popular in 2004 and was nominated for the Brage Prize of the Norwegian Publisher’s Association.
Øyehaug took her M.A. in Comparative Literature at the University of Bergen. She has been co-editor of "Vagant", the leading literary journal in Norway, and literary critic for the newspapers "Morgenbladet" and »Klassekampen«. She has taught literary theory at University of Bergen and has also worked to promote literature in various ways. She now also co-edits the literary journal "Kraftsentrum."
- Slaven av blåbæret (Poetry, 1998)
- Knutar (Short stories, 2004) (English edition: Knots: Stories, translated by Kari Dickson, Farrar, Straus and Giroux, 2017)
- Stol og ekstase (Essays and short stories, 2006)
- Vente, blinke (Novel, 2008) (English edition: Wait Blink: A Perfect Picture of Inner Life, translated by Kari Dickson, Farrar, Straus and Giroux, 2018)
- Gunnhild Øyehaug in Store norske leksikon (in Norwegian)
- Flikke, Yngvild Sve (2015-03-06), Women in Oversized Men's Shirts, Inga Ibsdotter Lilleaas, Henriette Steenstrup, Anne Krigsvoll, retrieved 2018-07-12
- "5 Great Books You May Have Missed in June". Literary Hub. 2018-07-11. Retrieved 2018-07-12.