| Dilong paradoxus Temporal range: Early Cretaceous,
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| Skeleton cast mount at Milwaukee Public Museum | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Clade: | †Pantyrannosauria |
| Genus: | †Dilong Xu et al., 2004 |
| Species: | †D. paradoxus
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| Binomial name | |
| †Dilong paradoxus Xu et al., 2004
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Dilong (帝龍, which means 'emperor dragon') is a genus of small basal tyrannosauroid dinosaurs. The only species in the genus is Dilong paradoxus, known from the Lower Cretaceous Yixian Formation of East Asia (in what is now China). The discovery of Dilong was significant as it provided the first evidence of feathers in tyrannosaurs, something which had previously been suspected for the group.