| Name | Meaning | Gender | Origin |
|---|
| Lois | Battle Maiden | Female | Greek |
| Madison | son of a mighty warrior; son of Maud | Female | English |
| Mafalda | Strength In Battle | Female | Italian |
| Mathilda | battle maiden, strength | Female | English |
| Mathilde | Mighty In Battle | Female | French |
| Matilda | battle-mighty | Female | |
| Mattie | Mighty In Battle | Unisex | German |
| Maude | battle-mighty | Female | English |
| Maynard | Firm
| Male | |
| Megan | mighty, strong able, pearl | Female | English |
| Nina | Girl
| Female | Russian |
| Odin | Viking mythology: the allmighty god | Male | Old |
| Orion | Son of Fire
| Male | Greek |
| Raghnall | Strong
| Male | |
| Raighne | Mighty
| Male | |
| Ramon | Form of Raymond Guards wisely.
| Male | Catalan |
| Ramona | Wise defender
| Female | Spanish |
| Ray | kingly | Male | English |
| Raymond | Guards wisely.
| Male | |
| Reg | Wise ruler | Unisex | English |
| Reggie | counsel power | Male | English |
| Reginald | powerful one | Male | English |
| Renny | little prosperous one | Male | Anglicized |
| Rex | after the Rex Banner character in The Simpsons cartoons | Male | Latin |
| Reynold | counsel-power | Male | English |