Ivar Rooth (2 November 1888 – 27 February 1972) was a Swedish lawyer and economist. He served as Governor of the Swedish National Bank from 1929 to 1948 and as the second head (Managing Director and Chairman of the Executive Board) of the International Monetary Fund (IMF) from 1951 to 1956. He was also a member of the board of directors of the Bank of International Settlements.