Daanosaurus was a genus of dinosaur. It was a brachiosaurid sauropod which lived during the Late Jurassic (Oxfordian - Tithonian stage, about 163 - 145 mya). It lived in what is now China (Sichuan Province), and was similar to Bellusaurus. The type species, described in 2005, is Daanosaurus zhangi. Adult size is unknown due to lack of fossil remains.