| Jabik | Jaitse | Jaldert |
| Jalke | Jalle | Japik |
| Jappe | Jarich | Jasper |
| Jatsje | Jeen | Jelco |
| Jeldert | Jelger | Jelis |
| Jelke | Jelle | Jellert |
| Jellis | Jelmar | Jelmen |
| Jelmer | Jelske | Jelt |
| Jelte | Jeltse | Jeltsen |
| Jen | Jens | Jensen |
| Jente | Jentsen | Jerke |
| Jerre | Jerrel | Jesse |
| Jetze | Jibbe | Jildert |
| Jile | Jilis | Jille |
| Jillert | Jilles | Jillis |
| Jim | Jimke | Jimme |
| Jimte | Jinne | Jins |
| Jis | Jiske | Jit |
| Jitse | Jitte | Jobbe |
| Jodsert | Joere | Jokke |
| Jolke | Jolle | Jorik |
| Jork | Jorke | Jorn |
| Jorre | Jorren | Jorrit |
| Jort | Jorunn | Jotte |
| Jou | Joure | Jubbe |
| Jurmen | Jurrit |