Sidney Arthur Kilworth Keyes was an English poet. Only two books were published during his lifetime: The Cruel Solstice and The Iron Laurel. He died in action in 1943, and in 1945 a third book was published: The Collected Poems of Sidney Keyes. In 1943, Keyes was awarded the Hawthornden Prize for The Cruel Solstice and The Iron Laurel.