Tsaagan, meaning “white,” is a genus of dromaeosaurid dinosaur from the Late Cretaceous Period and lived in what is now Mongolia. It was discovered in the Djadokhta Formation. Tsaagan is known from a well-preserved skull and several neck vertebrae. It was described by Norell et. al. in December 2006.
Besides Velociraptor, Tsaagan represents the only dromaeosaurid remains known from the Ukhaa Tolgod region. Tsaagan possibly shared its habitat with the Protoceratops, Shuvuuia, and a few mammals species, as well as lizards and two undescribed species of troodontid and dromaeosaurid.
The type species, Tsaagan mangas, comes from the Mongolian word for “white monster.” Although, the genus name Tsaagan was an accidental misspelling of Tsagaan.