Nurhachius is a genus of istiodactylid pterodactyloid pterosaur from the Barremian to Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China.

The genus was named in 2005 by Wang Xiaolin, Alexander Kellner, Zhou Zhonghe and Diogenes de Almeida Campos.

The genus name refers to Nurhaci, the first emperor of the Qing Dynasty, whose original power base encompassed the region where the fossil was found.

The specific name honors the late Brazilian paleontologist Ignácio Aureliano Machado Brito, who pioneered the study of pterosaurs in his country.

and described from the Jingangshan Member of the upper part of the Yixian Formation, representing the geologically oldest known record of the genus.

In 2019, a single apomorphy, or unique distinguishing trait of the genus as such, was indicated: the front tip of the palate is slightly turned upwards.

[3] Ikrandraco avatar Lonchodraco giganteus Haopterus gracilis Hongshanopterus lacustris Nurhachius ignaciobritoi Nurhachius luei Liaoxipterus brachyognathus Istiodactylus sinensis Istiodactylus latidens Ornithocheirus simus Cimoliopterus cuvieri Hamipteridae Anhangueridae A phylogenetic analysis by Hone et al. (2024) instead recovered the genus to be paraphyletic, with N. luei being closer to Hongshanopterus.