| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| CASTOR | KAS-tər (English) | Greek Mythology (Latinized) | ||
| CATAHECASSA | - | Native American, Shawnee | ||
| CATALINA | kah-tah-LEE-nah | Spanish | ||
| CATARINA | kah-tah-REE-nah (Italian), ka-ta-REE-na (Galician) | Italian, Portuguese, Occitan, Galician | ||
| CATE | KAYT | English (Rare) | ||
| CATELINE | - | Medieval French | ||
| CATERINA | - | Italian, Catalan | ||
| Cates | [keits] | |||
| CATHÁN | - | Irish | ||
| CATHAIR | KA-heer | Irish | ||
| CATHAL | KA-hal | Irish | ||
| CATHAOIR | KA-heer | Irish | ||
| CATHARINA | kah-tah-REE-nah (Dutch) | Dutch, Swedish | ||
| Catharine | ['kæθərin] | |||
| CATHARINE | KATH-ə-rin, KATH-rin | English |