Sinfóníuhljómsveit Íslands is an Icelandic orchestra based in Reykjavík, Iceland. Its primary concert venue is the Harpa Concert Hall. The Iceland Symphony is an autonomous public institution under the auspices of the Icelandic Ministry of Education. Iceland Symphony Orchestra made its home in Háskólabíó from 1961–2011, but moved into the new 1800-seat Harpa Concert Hall in spring 2011. The orchestra gives approximately sixty concerts each season. Per a 1982 law, the Iceland Symphony's primary financial sources are the Icelandic treasury and the City of Reykjavik.
Eva Ollikainen is the chief conductor-designate of the ISO, effective in 2020. Osmo Vänskä is the ISO's Honorary Conductor and Vladimir Ashkenazy holds the post of Conductor Laureate. In 2018, Anna Thorvaldsdottir assumed the position of Composer-in-Residence with the orchestra, and Bjarni Frímann Bjarnason was appointed as Assistant Conductor.