Stian Berger Røsland (born 3 November 1976 in Oslo) is a Norwegian politician for the Conservative Party. He succeeded Erling Lae as Governing Mayor of Oslo in 2009. He served to 2015 when he was replaced by Labour politician Raymond Johansen after the Conservatives and allies narrowly lost the majority in Oslo city council in the 2015 local elections. He also served as commissioner of finance under Erling Lae from 2007 to 2009.