| Name | Meaning | Gender | Origin |
|---|
| Lennox | amid the lems, from the field of elm trees | Male | Scottish |
| Leonardo | Lion-bold. Leonardo da Vinci is considered by many to be the most brilliant and creative men who ever lived.
| Male | Italian |
| Lewis | Renowned fighter. Form of Louis.
| Male | English |
| Lincoln | Capital of Nebraska, USA. Old English: home by the pond | Male | English |
| Lorenzo | Form of Lawrence. Lorenzo de' Medici was a patron of Michaelangelo and Da Vinci.
| Male | Italian |
| Luce | Of Lucania | Unisex | French |
| Luciana | light | Female | Italian |
| Lucio | Spanish form of Luke light
| Male | |
| Lucius | Light | Male | Roman |
| Macbeth | Son of Beth
| Male | |
| Macduff | Son Of The Black Man | Unisex | Scottish |
| Malcolm | Royal Blood | Male | Scottish |
| Marcus | warlike | Male | Latin |
| Margaret | after Margaret Thatcher | Female | Greek |
| Maria | bitter | Female | Latin |
| Marina | sea maiden | Female | Latin |
| Mark | warlike | Male | Latin |
| Matthew | Gift of the Lord | Male | Hebrew |
| Maud | strength in battle | Female | English |
| Mercutio | character in Romeo and Juliet | Unisex | |
| Michael | who is like God | Male | Hebrew |
| Miranda | Admirable
| Female | Latin |
| Montague | steep mountain | Male | |
| Morgan | circle; sea | Female | Welsh |
| Mortimer | still water | Male | English |