| African Grey Hornbill | Lophoceros nasutus | Calao à bec noir |
| Austen's Brown Hornbill | Anorrhinus austeni | Calao d'Austen |
| Black Hornbill | Anthracoceros malayanus | Calao charbonnier |
| Black-and-white-casqued Hornbill | Bycanistes subcylindricus | Calao à joues grises |
| Black-casqued Hornbill | Ceratogymna atrata | Calao à casque noir |
| Blyth's Hornbill | Rhyticeros plicatus | Calao papou |
| Bradfield's Hornbill | Lophoceros bradfieldi | Calao de Bradfield |
| Brown-cheeked Hornbill | Bycanistes cylindricus | Calao à joues brunes |
| Bushy-crested Hornbill | Anorrhinus galeritus | Calao largup |
| Congo Pied Hornbill | Lophoceros fasciatus | Calao longibande |
| Crowned Hornbill | Lophoceros alboterminatus | Calao couronné |
| Damara Red-billed Hornbill | Tockus damarensis | Calao de Damara |
| Eastern Dwarf Hornbill | Horizocerus granti | Calao de Grant |
| Eastern Long-tailed Hornbill | Horizocerus cassini | Calao de Cassin |
| Eastern Yellow-billed Hornbill | Tockus flavirostris | Calao à bec jaune |
| Great Hornbill | Buceros bicornis | Calao bicorne |
| Helmeted Hornbill | Rhinoplax vigil | Calao à casque rond |
| Hemprich's Hornbill | Lophoceros hemprichii | Calao de Hemprich |
| Indian Grey Hornbill | Ocyceros birostris | Calao de Gingi |
| Jackson's Hornbill | Tockus jacksoni | Calao de Jackson |
| Knobbed Hornbill | Rhyticeros cassidix | Calao à cimier |
| Luzon Hornbill | Penelopides manillae | Calao de Manille |
| Malabar Grey Hornbill | Ocyceros griseus | Calao gris |
| Malabar Pied Hornbill | Anthracoceros coronatus | Calao de Malabar |
| Mindanao Hornbill | Penelopides affinis | Calao de Mindanao |
| Mindoro Hornbill | Penelopides mindorensis | Calao de Mindoro |
| Monteiro's Hornbill | Tockus monteiri | Calao de Monteiro |
| Narcondam Hornbill | Rhyticeros narcondami | Calao de Narcondam |
| Northern Red-billed Hornbill | Tockus erythrorhynchus | Calao à bec rouge |
| Oriental Pied Hornbill | Anthracoceros albirostris | Calao pie |
| Oriental Pied Hornbill (convexus) | Anthracoceros albirostris convexus | Calao malais |
| Palawan Hornbill | Anthracoceros marchei | Calao de Palawan |
| Pale-billed Hornbill | Lophoceros pallidirostris | Calao à bec pâle |
| Piping Hornbill | Bycanistes fistulator | Calao siffleur |
| Plain-pouched Hornbill | Rhyticeros subruficollis | Calao à gorge claire |
| Red-billed Dwarf Hornbill | Lophoceros camurus | Calao pygmée |
| Rhinoceros Hornbill | Buceros rhinoceros | Calao rhinocéros |
| Rufous Hornbill | Buceros hydrocorax | Calao à casque plat |
| Rufous-necked Hornbill | Aceros nipalensis | Calao à cou roux |
| Samar Hornbill | Penelopides samarensis | Calao de Samar |
| Silvery-cheeked Hornbill | Bycanistes brevis | Calao à joues argent |
| Southern Red-billed Hornbill | Tockus rufirostris | Calao d'Afrique du Sud |
| Southern Yellow-billed Hornbill | Tockus leucomelas | Calao leucomèle |
| Sri Lanka Grey Hornbill | Ocyceros gingalensis | Calao de Ceylan |
| Sulawesi Hornbill | Rhabdotorrhinus exarhatus | Calao des Célèbes |
| Sulu Hornbill | Anthracoceros montani | Calao des Sulu |
| Sumba Hornbill | Rhyticeros everetti | Calao de Sumba |
| Tanzanian Red-billed Hornbill | Tockus ruahae | Calao de Tanzanie |
| Tickell's Brown Hornbill | Anorrhinus tickelli | Calao brun |
| Trumpeter Hornbill | Bycanistes bucinator | Calao trompette |
| Visayan Hornbill | Penelopides panini | Calao tarictic |
| Von der Decken's Hornbill | Tockus deckeni | Calao de Decken |
| Walden's Hornbill | Rhabdotorrhinus waldeni | Calao de Walden |
| West African Pied Hornbill | Lophoceros semifasciatus | Calao brévibande |
| Western Dwarf Hornbill | Horizocerus hartlaubi | Calao de Hartlaub |
| Western Long-tailed Hornbill | Horizocerus albocristatus | Calao à huppe blanche |
| Western Red-billed Hornbill | Tockus kempi | Calao occidental |
| White-crowned Hornbill | Berenicornis comatus | Calao coiffé |
| White-thighed Hornbill | Bycanistes albotibialis | Calao à cuisses blanches |
| Wreathed Hornbill | Rhyticeros undulatus | Calao festonné |
| Wrinkled Hornbill | Rhabdotorrhinus corrugatus | Calao à casque rouge |
| Writhed Hornbill | Rhabdotorrhinus leucocephalus | Calao de Vieillot |
| Yellow-casqued Hornbill | Ceratogymna elata | Calao à casque jaune |
