| Caouana Cocteau & Bibron, 1839 |
| Caouana elongata Gray, 1844 |
| Caretta Rafinesque, 1814 |
| Caretta atra Merrem, 1820 |
| Caretta caretta (Linnaeus, 1758) |
| Caretta esculenta Merrem, 1820 |
| Caretta gigas Deraniyagala, 1933 |
| Caretta nasuta Rafinesque, 1814 |
| Caretta remivaga Hay, 1908 |
| Caretta rostrata Girard, 1858 |
| Caretta squamosa Girard, 1858 |
| Caretta thunbergii Merrem, 1820 |
| Carettinae Gray, 1825 |
| Cephalochelys Gray, 1873 |
| Cephalochelys oceanica Gray, 1873 |
| Chelone Brongniart, 1805 |
| Chelonia Brongniart, 1800 |
| Chelonia agassizii Bocourt, 1868 |
| Chelonia albiventer Nardo, 1864 |
| Chelonia bicarinata Lesson, 1834 |