Herman "Hemmo" Kallio (19 April 1863 – 8 September 1940)[1] was a Finnish stage and film actor and playwright.

Born Herman Puttonen, he officially changed his surname to Kallio in 1906.

[2] Herman began his professional career as a print shop director.

His long stint at the theater included a repertoire of over four hundred roles.

One of his most popular film roles was that of Anna-Liisa's father in the 1922 Teuvo Puro and Jussi Snellman-directed silent film drama Anna-Liisa, based on the eponymously titled 1895 play by Finnish writer Minna Canth.