Viljo Lennart Kajava (22 September 1909 – 2 February 1998) was a Finnish poet and writer. He was born in Tampere, and his first collections of poems were released in 1935. During his 50-year career he published nearly 40 books, most of them poems. Kavaja's Tampereen runot ("Poems of Tampere 1918") has become a symbol of the pacifistic point of view of the Finnish Civil War.

He died in Helsinki, and is buried in the Hietaniemi Cemetery there.^[1]

Kajava studied at the University of Helsinki. He started as a writer in the mid-1930s. His production was very social and left -wing. He was a central member of the member's writer association Kiila. The Winter War between 1939 and 1940 was a major transformation for Kajava, and he moved from sociality to nature and impressionist lyrics in his production. During the Continuation War, Kajava served as a front correspondent in the TK company.^[2]