| Name | Meaning | Gender | Origin |
|---|
| Marley | From the lake in the meadow | Female | English |
| Marley | From the lake in the meadow | Female | English |
| Marlowe | after Philip | Male | English |
| Mars | God Of War | Male | Latin |
| Mayo | yew-tree plain | Male | Irish |
| Miki | beautiful tree | Female | Japanese |
| Milo | Merciful.
| Male | Latinized |
| Milo | Merciful.
| Male | Latinized |
| Mimosa | | Female | |
| Myrtle | a flower, symbol of victory | Female | Greek |
| Natalie | birthday of the Lord | Female | |
| Nick | Variation of Dominic, belonging to the Lord | Male | English |
| Nikki | Victorious People | Unisex | English |
| Oakes | from the oak-tree grove | Male | English |
| Oakley | from the oak meadow | Male | English |
| Ogden | from the oak valley | Male | English |
| Oleander | | Unisex | |
| Olive | kind one; olive tree, peace. Symbol of peace. A small oval fruit. | Female | English |
| Oliver | The olive tree. The biblical olive tree symbolizes fruitfulness and beauty and dignity. Extending an olive branch signifies an offer of peace.
| Male | Latin |
| Olivia | Olive
| Female | Latin |
| Orchid | | Female | |
| Orson | Little bear
| Male | Latin |
| Oswald | Divinely powerful
| Male | English |
| Owen | Young fighter
| Male | Welsh |
| Palmer | palm bearing pilgrim | Male | English |