| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Jacenty | yah-TSEN-ti | Polish (Rare) | ||
| Jaci | - | English | ||
| Jacinda | - | English (Rare) | ||
| Jacinta | hah-THEEN-tah (Spanish), hah-SEEN-tah (Latin American Spanish) | Spanish, Portuguese | ||
| Jacinth | JAY-sinth, JAS-inth | English (Rare) | ||
| Jacinto | hah-THEEN-to (Spanish), hah-SEEN-to (Latin American Spanish) | Spanish, Portuguese | ||
| Jack | JAK | English | ||
| Jackalyn | - | English (Rare) | ||
| Jacki | JAK-ee | English | ||
| Jackie | JAK-ee | English | ||
| Jackin | - | Medieval English | ||
| Jacklyn | JAK-lin | English | ||
| Jackson | JAK-sən | English | ||
| Jaclyn | JAK-lin | English | ||
| Jacob | JAY-kəb (English), YAH-kawp (Dutch) | English, Dutch, Swedish, Norwegian, Danish, Jewish, Biblical |