| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Calixta | - | Spanish, Portuguese | ||
| Calixto | - | Spanish, Portuguese | ||
| Calla | KAL-ə | English | ||
| Callahan | KAL-ə-han | English | ||
| Calleigh | KAL-ee | English (Rare) | ||
| Callie | KAL-ee | English | ||
| Callista | kə-LIS-tə | English (Rare) | ||
| Callum | KAL-um | Scottish | ||
| Calum | KAL-um | Scottish | ||
| Calvagh | - | Irish | ||
| Calvin | KAL-vin | English | ||
| Cam (1) | - | Vietnamese | ||
| Cam (2) | KAM | English | ||
| Cambria | KAM-bree-ə (English) | Various | ||
| Cambyses | - | History |