August Ramsay (15 March 1859 – 23 July 1943) was a Finnish mathematician, banker and insurance executive.

From 1891 Ramsay served as Finland's first insurance reviewer until 1895, when he became CEO of the Finnish Urban Mortgage Fund.

From November 1902, Ramsay served as the first managing director of the Mutual Fire Aid Association of Finnish Industrialists until 1913.

[2][3] Ramsay served as Minister of Finance for 121 days Kaarlo Castrén's Minority Government in 1919, representing the Swedish People's Party.

[4] From 1923 to 1924, Ramsay served as the governor of the Bank of Finland and as the chairman of the executive board.