| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Cadwgan | kah-DO-gahn | Welsh | ||
| Caedmon | KAD-mən (English) | History | ||
| Caelan | KAY-lən | English (Rare) | ||
| Caelie | KAY-lee | English (Rare) | ||
| Caerwyn | - | Welsh | ||
| Caetano | - | Portuguese | ||
| Caetlin | KAYT-lin | English (Rare) | ||
| Cahal | - | Irish | ||
| Cahaya | - | Indonesian, Malay | ||
| Cahir | - | Irish | ||
| Cahya | CHAH-yah | Indonesian | ||
| Cahyo | - | Indonesian, Javanese | ||
| Cai (1) | - | Swedish, Norwegian, Danish | ||
| Cai (2) | - | Welsh Mythology, Arthurian Romance | ||
| Caiden | KAY-dən | English (Modern) |