Olle Zetterquist (born 15 January 1927) is a Swedish artist and violinist. He was educated at the Valand Academy and became established in the Swedish artworld in the 1950s.[1] He has 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 is married to the artist Denice Zetterquist. Their daughter Nina Zetterquist is a textile artist.[3]