| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Jaakkima | YAH:K-kee-mah | Finnish | ||
| Jaakko | YAH:K-ko | Finnish | ||
| Jaakob | - | Finnish (Rare), Estonian (Rare) | ||
| Jaakoppi | YAH:-kop-pee | Finnish (Rare) | ||
| Jaana | YAH:-nah | Finnish | ||
| Jalmari | YAHL-mah-ree | Finnish | ||
| Jalo | YAH-lo | Finnish | ||
| Jami (2) | YAH-mee | Finnish | ||
| Jani | YAH-nee (Finnish) | Finnish, Hungarian | ||
| Janina | yah-NEE-nah (Polish, German), YAH-nee-nah (Finnish) | Polish, Finnish, German, Swedish, Lithuanian | ||
| Janna | YAHN-nah (Dutch, Finnish), JAN-ə (English) | Dutch, Swedish, Finnish, English | ||
| Janne (1) | YAHN-ne | Finnish, Swedish | ||
| Jari | YAH-ree | Finnish | ||
| Jarkko | YAHRK-ko | Finnish | ||
| Jarmo | YAHR-mo | Finnish |