Karl Ove Knausgård (Norwegian: [kɑːl ˈûːvə ˈknæ̂ʉsɡoːr]; born 6 December 1968) is a Norwegian author. He gained worldwide fame with his series of six autobiographical novels titled My Struggle (Min Kamp). The Wall Street Journal described him as "one of the 21st century's greatest literary sensations."

Since completing the My Struggle series in 2011, Knausgård has also published an autobiographical series called The Seasons Quartet and has written critical works on the art of Edvard Munch. He has been honored with awards such as the 2009 Brage Prize, 2017 Jerusalem Prize, and 2019 Swedish Academy Nordic Prize.

Knausgård made his literary debut in 1998 with the widely acclaimed novel Out of the World, which was a critical and commercial success, earning him the Norwegian Critics' Prize as the first debut novel ever to do so.