| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 661 | Corette | Greek | Maiden. | F | |
| 662 | Coridan | Greek | Ready to fight. | M | |
| 663 | Corin | Greek | Maiden. | F | |
| 664 | Corinne | Greek | Maiden. | F | |
| 665 | Corinthia | Greek | 'Woman of Corinth. | F | |
| 666 | Coronis | Greek | Mother of Aesculapius. | F | |
| 667 | Corrina | Greek | Maiden. | F | |
| 668 | Corybantes | Greek | Priest of Rhea. | M | |
| 669 | Corydon | Greek | Ready to fight. | M | |
| 670 | Cos | Greek | Order. | M | |
| 671 | Cosima | Greek | Order. | M | |
| 672 | Cosimia | Greek | Of the universe. | F | |
| 673 | Cosimo | Greek | Variant of Cosmo: From 'kosmos' meaning order. | M | |
| 674 | Cosma | Greek | Of the universe. | F | |
| 675 | Cosmas | Greek | Order. | M | |
| 676 | Cosme | Greek | Variant of Cosmo: From 'kosmos' meaning order. | M | |
| 677 | Cosmo | Greek | From 'kosmos' meaning order. St Cosmas, patron saint of physicians, and his twin brother St Damian were martyred in the early 4th century. | M | |
| 678 | Costa | Greek | Steady; stable. | M | |
| 679 | Cottus | Greek | A Titan. | M | |
| 680 | Creon | Greek | Prince. Jocasta's brother. | M | |