Teiji Seta (瀬田貞二, sometimes called Seta Teiji in the West) (1916-1979) was a Japanese Haiku poet and an expert in Japanese literature. He translated several of "J.R.R. Tōrukin"'s works into Japanese, incuding The Hobbit, The Lord of the Rings, Letters from Father Christmas and Bilbo's Last Song. He also translated several of C.S. Lewis' works.