| Name | Meaning | Gender | Origin |
|---|
| Hugh | bright in mind and spirit | Male | English |
| Humphrey | peaceful warrior | Male | |
| Iago | Supplanter
| Male | Welsh |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| James | From Jacob - To fill the place of another, supplanter. | Male | English |
| John | God is merciful | Male | Hebrew |
| Joseph | God will increase | Male | Hebrew |
| Julius | after Julius Caesar | Male | Latin |
| Jupiter | Zeus, Father | Male | Roman |
| Laertes | from Shakespeare's Hamlet | Unisex | |
| Lance | knight's attendant; land | Male | English |
| Lancelot | Knight of Arthur and lover of Guinevere
| Male | |
| Launcelot | Knight of Arthur and lover of Guinevere
| Male | |
| 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 |
| 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 |