| Lashan | Variant of Lashawn, meaning God is gracious |
| Laslo | Rule with Glory |
| Late | A Fascinating Young Man |
| Lathin | Variant of Lathan, meaning noble or aristocratic |
| Laton | Variant of Lathon, meaning noble or aristocratic |
| Laurance | From Laurentium |
| Laval | Dweller near the valley floor |
| Leather | As Tough as Hide |
| Leer | One who looks with a sly gaze |
| Legacy | Meaning inheritance or something passed down |
| LeGrand | French name meaning great land or estate |
| Lemon | A bright yellow citrus fruit tree. |
| Lerone | A name meaning song or melody. |
| Lerry | Variant of Larry, meaning free man |
| LeShon | Hebrew name meaning language or tongue |
| Lexter | Variant of Lester, meaning calm or peaceful |
| Lexx | Defender of Mankind |
| Liev | Heart of the Lion |
| 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 |
| 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. |
| Lynwood | From the linden tree forest. |
| Mach | Germanic name meaning 'strong' or 'powerful'. |