Olle Zetterquist (15 January 1927 – 20 September 2024) was a Swedish artist and violinist. He was educated at the Valand Academy and became established in the Swedish artworld in the 1950s.[1] He had often collaborated with his brother Jörgen Zetterquist, also an artist and musician. His works stretch from abstract organic painting to naturalism, with a focus on composition and colour values. Many of his subjects are from the nature around Arvika, where he is from.[2] He was married to the artist Denice Zetterquist. Their daughter Nina Zetterquist is a textile artist.[3] Zetterquist died on 20 September 2024, at the age of 97.[4]