Dua Menara (judul bahasa Inggris: The Two Towers) adalah jilid kedua dari tiga jilid novel epik The Lord of the Rings karya penulis Inggris, J. R. R. Tolkien. Buku ini dibagi menjadi dua bagian dan pertama kali dirilis di Britania Raya. Buku sebelumnya adalah Sembilan Pembawa Cincin dan selanjutnya adalah dan Kembalinya Sang Raja.

l b s Karya-karya J. R. R. Tolkien
Legenda	Songs for the Philologists (1936) The Hobbit (1937) Leaf by Niggle (1947) The Lay of Aotrou and Itroun (1945) Farmer Giles of Ham (1949) The Homecoming of Beorhtnoth Beorhthelm's Son (1953) The Lord of the Rings: The Fellowship of the Ring (1954) The Two Towers (1954) The Return of the King (1955) The Adventures of Tom Bombadil (1962) Tree and Leaf (1964) The Tolkien Reader (1966) The Road Goes Ever On (1967) Smith of Wootton Major (1967)
Fiksi anumerta	The Father Christmas Letters (1976) The Silmarillion (1977) Poems and Stories (1980) Unfinished Tales (1980) Mr. Bliss (1982) Bilbo's Last Song (1990) The History of Middle-earth (1983–1996) Tales from the Perilous Realm (1997) Roverandom (1998) The Children of Húrin (2007) The History of The Hobbit (2007) The Legend of Sigurd and Gudrún (2009) The Fall of Arthur (2013) The Story of Kullervo (2015)
Akademik	Sir Gawain and the Green Knight (teks Inggris Pertengahan, 1925) The Devil's Coach Horses (1925) Ancrene Wisse and Hali Meiðhad (1929) Sigelwara Land (1932–34) The Reeve's Tale (1934) Beowulf: The Monsters and the Critics (1936) On Fairy-Stories (1939) On Translating Beowulf (1940) Sir Orfeo (1944) Ancrene Wisse (1962) English and Welsh (1963) Jerusalem Bible (sebagai penerjemah dan leksikograf, 1966)
Akademik anumerta	Sir Gawain and the Green Knight, Pearl, dan Sir Orfeo (terjemahan Inggris Modern English, 1975) Finn and Hengest (1982) The Monsters and the Critics, and Other Essays (1983) Beowulf and the Critics (2002) Beowulf: A Translation and Commentary dengan Sellic Spell (2014) A Secret Vice (2016) List of Tolkien's alliterative verse