| Name | Gender | Origin | Meaning |
|---|---|---|---|
| Keren |  |
Cornish | Rowan tree |
| Kerkko |  |
Finnish | Shoot of a tree |
| Kiri | |
Maori | Tree bark |
| Kowhai | |
Maori | Tree |
| Kunja | |
Hindu | Grove Of Trees |
| Kunja | |
Tamil | Grove of trees |
| Lakkari | |
Australian | Honeysuckle tre... |
| Leena | |
Estonian | Rowan tree; man... |
| Lemana | |
Australian | Oak tree |
| Lena | |
Lebanese | The bright one,... |