| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Carson | KAHR-sən | Scottish, English | ||
| Carter | KAHR-tər | English | ||
| Carver | KAHR-vər | English (Rare) | ||
| Cary | KER-ee | English | ||
| Caryl | KER-əl, KAR-əl | English | ||
| Caryn | KER-ən, KAR-ən | English | ||
| Casey | KAY-see | English, Irish | ||
| Cash | KASH | English | ||
| Casimir | KAZ-i-meer (English) | English, French | ||
| Cass | KAS | English | ||
| Cassandra | kə-SAN-drə (English), kə-SAHN-drə (English), kahs-SAHN-drah (Italian) | English, Spanish, Portuguese, Italian, French, German, Greek Mythology (Latinized) | ||
| Cassarah | kə-SER-ə, KAS-ə-rə | English (Rare) | ||
| Cassidy | KAS-i-dee | English (Modern) | ||
| Cassie | KAS-ee | English | ||
| Cassius | KASH-əs (English), KAS-ee-əs (English) | Ancient Roman, English |