Crichtonsaurus is a genus of dinosaur named for Michael Crichton, the author of Jurassic Park. It was a thyreophoran, specifically an ankylosaur, and it lived during the late Cretaceous Period. Its fossils were discovered in China, and it was formally described by Dong Zhiming in 2002. The type species is Crichtonsaurus bohlini. A second species, C. benxiensis, was named in 2007 by Lü Junchang and colleagues in 2007 for a skull and partial skeleton from rocks of the early Late Cretaceous-age (Cenomanian-Turonian) Sunjiawan Formation of Beipiao, Liaoning.