Eino Leino (born Armas Einar Leopold Lönnbohm; 6 July 1878 – 10 January 1926) was a Finnish poet and journalist who is considered one of the pioneers of Finnish poetry and a national poet of Finland with J. L. Runeberg. His poems combine modern and Finnish folk elements. Much of his work is in the style of the Kalevala and folk songs in general. Nature, love, and despair are frequent themes in Leino's work. He is beloved and widely read in Finland today.
Leino's birthday on 6 July was named Eino Leino Day (Eino Leinon päivä) as well as day of Finnish poetry and summer in 1992, and it is an established Finnish flag day.