Rafael Waldemar Erich (10 June 1879 in Turku – 19 February 1946 in Helsinki) was a Finnish politician from the National Coalition Party, Professor, diplomat, and Prime Minister of Finland.

The most important function and accomplishment of Erich's cabinet was a peace treaty with the Russian SFSR.

The peace treaty was made in Tartu, Estonia, on 14 October 1920.

This was the time when the Russian SFSR finally completely recognised Finland's independence.

This article about a National Coalition Party politician is a stub.