Baron Eino Sakari (E. S.) Yrjö-Koskinen (3 October 1858 - 10 January 1916; surname until 1882 Forsman) was a Finnish educator and politician, born in Hämeenkyrö. He was a member of the Diet of Finland in 1897 and of the Parliament of Finland from 1907 until his death in 1916, representing the Finnish Party. Sakari Yrjö-Koskinen was the son of Yrjö Sakari Yrjö-Koskinen and the younger brother of Yrjö Yrjö-Koskinen.[1]