Tyra Kleen, sometimes written Thyra, born 29 March 1874 in Stockholm, died in 1951, was a Swedish artist and writer. Her illustrations can be signed T.Kn. Tyra's father was a diplomat, Fredrik Herman Richard Kleen (1841-1923), and her grandfather was a military man, Johan af Kleen. Kleen studied art in Germany and Paris in 1890, and spent much time abroad, especially in Indonesia, then the Dutch East Indies. Kleen mainly worked in drawing, etching and lithography. She exhibited her works in Berlin, Vienna, Milan, Rome, Paris, London and St. Petersburg.