| Name | Meaning | Details |
|---|---|---|
| Mikio | Tree Trunk | View Details |
| Mimosa | Tropical Tree | View Details |
| Mistletoe | Parasitic Plant Which Grows On Trees | View Details |
| Molimo | "Bear Walks Into Trees Shade" | View Details |
| Morales | By The Mulberry Tree | View Details |
| Mulya | Knock Acorns Off A Tree | View Details |
| Nivritti | Happiness | View Details |
| Oakes | Dweller By The Oak Tree | View Details |
| Oakley | From The Oak Tree Field | View Details |
| Oleander | Evergreen Tree | View Details |
| Olive | Olive Or From The Olive Tree | View Details |
| Onni | Happiness; Luck | View Details |
| Oren | Jerusalem Pine | View Details |
| Orinda | Pine Trees | View Details |
| Orna | Pine | View Details |