Kostas Kubilinskas
Lithuanian writer
Died when: 38 years 251 days (464 months)Star Sign: Cancer

Kostas Kubilinskas (1 July 1923 in Vilkaviškis district – 9 March 1962 near Moscow) was a Lithuanian poet known for his writing for children.
Amongst his books is The Frog Queen, a 1974 collection of children's poetry illustrated by Algirdas Steponavicius and translated into English by Avril Pyman.
According to the Genocide and Resistance Research Centre of Lithuania, Kubilinskas served as a spy for the MGB so that his poems (seen as "ideologically incorrect" by the Soviet government) could be published.
The centre's report alleges that during his time there he murdered , leader of the Šarunas group of the Lithuanian partisan Dainava military district.
A total of 15 Lithuanian freedom fighters died because of Kubilinskas' betrayal.In 2007 his poem The Wolf with a Frozen Tail was adapted into an animated film directed by , The Tail.