Leyb Moiseyevich Kvitko (, ) (October 15, 1890 – August 12, 1952) was a prominent Yiddish poet, an author of well-known children's poems and a member of the Jewish Anti-Fascist Committee (JAC). He was one of the editors of "Eynikayt" (the JAC's newspaper) and of the "Heymland", a literary magazine. He was executed in Moscow on August 12, 1952 together with twelve other members of the JAC, a massacre known as the Night of the Murdered Poets. Kvitko was rehabilitated in 1955.