| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Jon (2) | JAHN | English | ||
| Jonah | JO-nə (English) | English, Biblical | ||
| Jonathan | JAHN-ə-thən (English), YO-nah-tahn (German) | English, German, Swedish, Norwegian, Danish, Dutch, French, Biblical | ||
| Jonathon | JAHN-ə-thən | English | ||
| Jonelle | - | English (Rare) | ||
| Jonette | - | English (Rare) | ||
| Joni (1) | JO-nee | English | ||
| Jonie | - | English | ||
| Jonny | JAHN-ee | English | ||
| Jonquil | JAHN-kwil | English (Rare) | ||
| Jonty | JAHN-tee | English (British) | ||
| Jools | JOOLZ | English | ||
| Jordan | JAWR-dən (English) | English, Macedonian | ||
| Jordana | hor-DAH-nah (Spanish), jawr-DAN-ə (English) | Spanish, Portuguese, Macedonian, English (Rare) | ||
| Jordanes | - | Ancient Germanic |