| Named By: | Xu et al. in 2006 |
| Time Period: | Late Jurassic, 160 Ma |
| Location: | China - Shishugou Formation |
| Size: | 3 meters long |
| Diet: | Carnivore |
| Fossil(s): | Two specimens, one almost complete partially articulated adult, one almost complete and fully articulated juvenile |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Proceratosauridae | |
Guanlong (Guan Long ) is a genus of extinct proceratosaurid tyrannosauroid from the Late Jurassic of China. The taxon was first described in 2006 by Xu et al., who found it to represent a new taxon related to Tyrannosaurus. The name is derived from Chinese, translating as "five colored crowned dragon". Two individuals are currently known, a partially complete adult and a nearly complete juvenile. These specimens come from the Oxfordian period, of the Chinese Shishugou Formation.