Northern red-billed hornbill
| Northern red-billed hornbill | |
|---|---|
| Male, Lake Baringo, Kenya | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Aves | 
| Order: | Bucerotiformes | 
| Family: | Bucerotidae | 
| Genus: | Tockus | 
| Species complex: | Tockus erythrorhynchus complex | 
| Species: | T. erythrorhynchus  | 
| Binomial name | |
| Tockus erythrorhynchus (Temminck, 1823)  | |
| Resident range | |
| Synonyms | |
| 
 Alophius erythrorhynchus  | |
The northern red-billed hornbill (Tockus erythrorhynchus) is a species of hornbill in the family Bucerotidae. It is found from southern Mauritania through Somalia and northeast Tanzania. There are five species of red-billed hornbills recognized, but all five were once considered conspecific and some authorities still classify the others as subspecies of Tockus erythrorhynchus.