| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 41 | Janalyn | Polish | Variant of John. In Roman mythology; Jana was the wife of Janus. | F | |
| 42 | Janalynn | Polish | Variant of John. In Roman mythology; Jana was the wife of Janus. | F | |
| 43 | Janceena | Polish | Variant of John. In Roman mythology; Jana was the wife of Janus. | F | |
| 44 | Janecska | Polish | Polish form of Joanna 'God is gracious'. | F | |
| 45 | Janica | Polish | Variant of John. In Roman mythology; Jana was the wife of Janus. | F | |
| 46 | Janna | Polish | Variant of John. In Roman mythology; Jana was the wife of Janus. | F | |
| 47 | Jannah | Polish | Variant of John. In Roman mythology; Jana was the wife of Janus. | F | |
| 48 | Jannalee | Polish | Variant of John. In Roman mythology; Jana was the wife of Janus. | F | |
| 49 | Janne | Polish | Variant of John. In Roman mythology; Jana was the wife of Janus. | F | |
| 50 | Jannie | Polish | Variant of John. In Roman mythology; Jana was the wife of Janus. | F | |
| 51 | Janny | Polish | Variant of John. In Roman mythology; Jana was the wife of Janus. | F | |
| 52 | Jasia | Polish | Polish form of Joanna: God is gracious. | F | |
| 53 | Joanka | Polish | Polish form of Joanna: God is gracious. | F | |
| 54 | Jolanta | Polish | Violet. | F | |
| 55 | Kaleen | Polish | A flower name. | F | |
| 56 | Kaleena | Polish | A flower name. | F | |
| 57 | Kalena | Polish | A flower name. | F | |
| 58 | Kalene | Polish | A flower name. | F | |
| 59 | Kalina | Polish | A flower name. | F | |
| 60 | Kamilla | Polish | Ceremonial attendant. | F | |