Lennart Kjellberg (1913-2004) was a Swedish translator from Russian, Polish and Lithuanian. After his studies in Uppsala, he worked from 1939 as a lecturer in Kaunas and Vilnius. After the breakout of WW II he worked as a teacher in Swedish and English at a grammar school in Stockholm. In 1984 he became a professor at Uppsala University and workes as a librarian at the Carolia Rediviva.
Among his most remarkable translations are Donelaitis' "Seasons" (1991) and poems by Zbigniew Herbert, Tadeusz Różewicz and Czesław Miłosz, additionally the anthology "Polsk poesi från tre sekler" (Polish Poetry from Three Centuries) in 1993.