| Name | Meaning | Gender | Origin | 
|---|
| March | Walk Forth | Male | Latin | 
| Marion | bitter | Male |  | 
| Marshall | Man who looks after a nobleman's estate, keeper of the horses; steward | Male |  | 
| Martin | Warlike person. | Male | Latin | 
| Marty | Of Mars The God Of War, Warlike | Unisex | English | 
| Maverick | One that dissents from the group. | Male | American | 
| Melvin | Chief
 | Male | English | 
| Michael | who is like God | Male | Hebrew | 
| Mick | Hebrew, who is like God? | Male | English | 
| Mickey | Abbreviation of Michael and Micah Who is like God?
 | Male | English | 
| Mike | Hebrew, who is like God? | Male | English | 
| Miles | of smiles | Male | Latin | 
| Milo | Merciful.
 | Male | Latinized | 
| Milo | Merciful.
 | Male | Latinized | 
| Mitch | Who Is Like G-D | Unisex | English | 
| Mordecai | warrior | Male | Hebrew | 
| Murphy | Sea warrior | Male | Irish | 
| Myles | inventor of the corn mill | Male | English | 
| Napoleon | Hound Dog from the AristoCats
 | Male | Greek | 
| Nelson | son of a champion, son of Neil | Male | English | 
| Nielsen | after Rick Nielsen, the Cheap Trick guitarist | Unisex |  | 
| Nilson |  | Unisex | Hebrew | 
| Odin | Viking mythology: the allmighty god | Male | Old | 
| 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 | 
| Orman | spearman | Unisex |  |