Iuticosaurus (meaning "Jute lizard") is the name given to a genus of dinosaur from the Early Cretaceous of the Isle of Wight. Iuticosaurus was a sauropod, specifically a titanosaur. In 1887 Richard Lydekker described two sauropod tail vertebrae found by William D. Fox near Brook Bay on Wight, BMNH R146a en BMNH 151, and referred them to the genus Ornithopsis, despite indicating their similarity to Titanosaurus, because the tail of Ornithopsis was unknown. On reading the paper to the Geological Society of London, Lydekker was criticised by Harry Govier Seeley and John Hulke for his choice and in 1888 he referred to the fossils as Titanosaurus sp. a, Titanosaurus sp. b being a third vertebra, BMNH 32390.