August Johannes (Hannes) Ryömä (24 April 1878 in Karkku – 22 May 1939 in Helsinki) was a Finnish physician and politician. He was a member of the Parliament of Finland for the Social Democratic Party of Finland from 1919 to 1939. He was Minister of Finance from 1926 to 1927 and Minister of Transport and Public Works from 1937 to 1938.