Ragnar Östberg (14 July 1866 – 5 February 1945) was a Swedish architect who is best known for designing Stockholm City Hall. ^[2]

Östberg was born in Stockholm, Sweden. His parents were Carl Östberg and Erika Kindahl. Between 1884 and 1891, he first studied at KTH Royal Institute of Technology. In 1888, he studied at the Royal Swedish Academy of Fine Arts. He had an internship with architect Isak Gustaf Clason (1856–1930). In 1893 he visited the World's Columbian Exposition in Chicago and in 1896 he went on a three-year study trip to, among others, England, France, Italy and Greece. Dating from the early 1900s, he lived and worked in Umeå in northern Sweden. Scharinska villan in Umeå is considered one of Östberg's best works during his youth.^[3][4]

Östberg became the most famous architect within the so-called "national romanticist" movement in Sweden. His body of work from the period ranges from public buildings, such as Stockholm City Hall,^[5] to mansions for influential families at the turn of the century, such as Scharinska villan or Nedre Manilla, built for members of the Bonnier family.^[6]

• Nedre Manilla, Djurgården, Stockholm
• Villa Ekarne (1905), Djurgården, Stockholm
• Villa Pauli, Djursholm (1905)
• Scharinska villan, Umeå (1905)
• Aschanska villan, Umeå (1906)
• Teaterhuset, Umeå (1906–1907)
• Prinsvillan, Djursholm, Danderyd (1909)
• Östermalms läroverk, "Östra Real", Stockholm (1906–1910)
• Patent- och registeringsverket, Stockholm (1911–1921)
• Stockholm City Hall (1923)
• Krematorium, Helsingborg (1929)
• Riksbron (bridge), Stockholm (1926–1930)
• The rebuilt palace on the islet of Strömsborg (1929–1930)
• Värmlands nation in Uppsala (1930)
• The Stagnelius School, Kalmar (1931–32)
• The Museum of Maritime History in Stockholm (1933–1936)
• The Zorn Museum in Mora (1938–1939)

• Stockholm City Hall, view over Lake Mälaren, 2013
• Villa Pauli, Djursholm, seen from Strandvägen, winter 2007
• Prinsvillan, Djursholm, seen from Germaniavägen, spring 2009
• Nedre Manilla, Djurgården, seen from Stockholm harbour, summer 2009
• Maritime Museum, Stockholm, seen from Djurgården, summer 2009
• Riksbron, Stockholm, seen from the west, spring 2006
• Villa Ekarne, Djurgården, autumn 2007
• Scharinska Villan, Umeå, spring 2007
• Aschanska Villan, Umeå, summer 2005
• Östermalms läroverk, Stockholm, winter 2011