| Cailan | - | Scottish Name | Caileach | - | Scottish Name |
| Cailean | - | Scottish Name | Cailee | - | Irish Name |
| Caileigh | - | Gaelic Name | Cailey | - | Hebrew Name |
| Cailin | - | Scottish Name | Caillen | - | Scottish Name |
| Caillic | - | Scottish Name | Cailsey | - | American Name |
| Cailyn | - | Greek Name | Caimile | - | African Name |
| Cain | - | Hebrew Name | Cainan | - | Biblical Name |
| Caine | - | Irish Name | Caiphas | - | Biblical Name |
| Caira | - | Latin Name | Cairistiona | - | Gaelic Name |
| Cairo | - | Australian Name | Cairoshell | - | Egyptian Name |
| Cait | - | Scottish Name | Caitlin | - | English Name |
| Caitlyn | - | Irish Name | Caitlynn | - | Irish Name |
| Caitrin | - | Scottish Name | Caitriona | - | Australian Name |
| Caius | - | Latin Name | Caja | - | Muslim Name |
| Cal | - | American Name | Cala | - | Algerian Name |
| Caladh | - | Scottish Name | Calah | - | Hebrew Name |
| Calais | - | Greek Name | Calan | - | Scottish Name |
| Calcol | - | Biblical Name | Calder | - | Scottish Name |
| Cale | - | English Name | Caleah | - | English Name |
| Caleb | - | Biblical Name | Caleb-Ephratah | - | Biblical Name |
| Calee | - | Greek Name |
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