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.