Đuro Seder (1927 Zagreb, Croatia [former Yugoslavia] – 2022 Zagreb, Croatia) was a Croatian painter. He studied painting at the Academy of Fine Arts in Zagreb and began his career as an illustrator. During the 1960s, in parallel with his activity in the Gorgona Group, his painting was characterized by a reduced use of colors and gestural brushstrokes inspired by Abstract Expressionism and Informel. In the early 1970s, Seder distanced himself from minimalist stylistic precepts and returned to using vibrant colors outlining expressive figurative forms. A painter but also a writer and a poet, he wrote for several Croatian magazines, publishing collections of poems and short stories. He taught at the Academy of Fine Arts of Zagreb from 1981 onwards. He was honored with the Vladimir Nazor Award for Painting (1986). Among many notable exhibitions, highlights include those at the Galeria Nazionale d’Arte Moderna e Contemporanea, Rome (1979) and the National Museum of Contemporary History in Ljubljana (1994). A substantial retrospective was presented at the National Museum of Modern Art in Zagreb in 2015.