| Life | Descendant, Heir |
| Lige | My God is Yahweh |
| Lillo | Variant of Lilo, meaning gentle or soft |
| Lindo | One who is Sturdy |
| Linzey | Variant of Lindsay, meaning island of saints |
| Lio | Lion, Brave, Hardy |
| Liston | Variant of Liston, meaning stone or rock |
| Little | Meaning small or young |
| Lliam | Short Form of Liam or William |
| Llywelyn | Welsh name meaning leader or chieftain |
| Loey | One who is Adventurous |
| Lokey | Variant of Lockey, meaning key or lock |
| Lomas | A name meaning hills or mounds. |
| Loney | A name meaning lonely or solitary. |
| Lorde | A title for a person of high rank. |
| Lory | A small colorful parrot species. |
| Lourival | Derived from Portuguese, meaning 'famous warrior' or 'famous fighter'. |
| Lubo | Slovakian name meaning 'dear one' or 'beloved'. |
| Luckey | A name meaning fortunate or lucky. |
| Lukus | Man from Lucania |
| Lum | Short form of names like Lumir or Lumiria, meaning 'light'. |
| Luster | A gentle sheen or soft glow. |
| Lynel | Young Lion, Hardy, Brave, Lion |
| Lynwood | From the linden tree forest. |
| Lyonel | Lion, Brave, Young Lion, Hardy |
| Mach | Germanic name meaning 'strong' or 'powerful'. |
| Macho | Spanish name meaning 'strong' or 'masculine'. |
| Maciek | Polish diminutive form of Maciej, meaning 'twisted' or 'wrestled'. |
| Mackie | Son of the fireborn one. |
| Macky | Diminutive form of Mackenzie, meaning 'wise' or 'wise child'. |
| Magdaleno | Spanish name meaning 'of Magdala', a town in ancient Israel. |
| Magnum | Latin name meaning 'great' or 'large'. |
| Maico | Short form of Maicon, meaning 'strong' or 'masculine'. |
| Maicon | Portuguese name meaning 'strong' or 'masculine'. |
| Majik | Uncommon name meaning 'magic' or 'mystical'. |
| Makai | Who is like God |
| Makell | One who is like God |
| Mancel | A person from the city of Mans. |
| Mandawuy | Aboriginal Australian name meaning 'strong' or 'powerful'. |
| Mandela | One who is a commander. |