Ilmari Kianto (7 May 1874 - 27 April 1970), also known as Ilmari Calamnius and Ilmari Iki-Kianto, was a Finnish author. He was born in Pulkkila, Northern Ostrobothnia, and is best known for his books Punainen viiva ("The Red Line", published 1909) and Ryysyrannan Jooseppi (published in 1924). In his books, he describes people and living at Suomussalmi municipality in Kainuu region. He died in Helsinki, aged 95. Composer Jean Sibelius used Kianto's poem 'Lastu lainehilla' (Driftwood) as the lyric for the last of his Seven Songs, Op.17 (1902).