| L'szl? | male | Hungarian | might, fame |
| L'l | male | Hungarian | bugler |
| L'rinc | male | Hungarian | Laurentian |
| La+cienega | female | Spanish | The Swamp, Marshes |
| Laasya | female | Hindi | Dance |
| Laban | male | Hebrew | White |
| Label | male | Hebrew | lion |
| Lacey | female | N/A | I look adorable in ribbons and lace. |
| Lach | male | Scottish | One who dwells by the lake. |
| Lachesis | female | N/A | One of the 3 fates. This one was believed to control the length of your life. |
| Lachlan | female | Celtic/Gaelic | From the Lake |
| Laci | female | N/A | N/A |
| Lacie | female | N/A | N/A |
| Laconia | female | N/A | The home of the Spartans in ancient times. |
| Lacrosse | male | N/A | I love playing with sticks and nets. |
| Lacy | female | French | place name |
| Ladd | male | Middle English | young man |
| Laddie | male | English | Attendant |
| Ladislaus | male | N/A | A Hungarian national hero who lived during the 11th century. |
| Ladle | male | N/A | I often use my big ol' paws to scoop fish out of the aquarium. |
| Ladoga | male | N/A | A large Russian lake that lies close to the Finnish border. |
| Ladom'r | male | Hungarian | trapper |
| lady | female | N/A | N/A |
| Lae | female | Laos | dark |
| Laertes | male | Greek | N/A |
| Lafayette | male | N/A | A French military leader who came to America and became a major general in the American army. |
| Laila | female | N/A | N/A |
| lailah | female | N/A | N/A |
| Lainey | female | English | sun ray |
| Laird | male | Scottish | A very prosperous landowner. |
| Laisha | female | N/A | N/A |
| Lajos | male | Hungarian | Famous Holy Man |
| Lakeisha | female | Swahili | favourite one |
| Laken | female | American | From the Lake |
| Lakin | female | African-American | Sim. Lakia, Found Treasure |
| Lakota | female | Native American | friend |
| Laksha | female | Hindi | White Rose |
| Lakshman | male | Hindu | brother of Rama |
| Lakshya | male | Hindu | target |
| Lakyle | female | Celtic/Gaelic | Half Wood |
| Lala | female | Slavic | A tulip. |
| Lalaine | female | N/A | helpful and hardworking |
| Lalasa | female | Hindu | love |
| Lalima | female | Hindu | N/A |
| Lalita | female | Hindu | N/A |
| Lalo | female | Latin | to sing a lullaby |
| Lam | male | Vietnamese | full understanding; knowledge |
| Lama | male | N/A | A monk in the Lamaism sect of Buddhism. |
| Laman | male | N/A | happy, content |
| lamans | female | N/A | N/A |
| Lamar | male | Old German | land |
| lamb | female | N/A | N/A |
| Lambda | female | N/A | The 11th letter of the Greek alphabet. |
| lambeau | female | N/A | N/A |
| Lambert | male | German | The radiant land. |
| Lamberto | male | Latin | wealthy in land, brilliant |
| Lambkin | female | N/A | The dog that reminds you of a little lamb. |
| Lamont | male | Norse | lawyer |
| Lana | female | Polynesian | to float |
| Lanai | female | N/A | island chain. |
| lancalot | female | N/A | N/A |
| Lance | male | Old French, Old German | knight's attendant |
| Lancelot | male | N/A | He was the bravest and most famous of King Arthur's knights of the round table. |
| lancer | female | N/A | N/A |
| Landen | female | English | Grassy Plain |
| Lander | male | Middle English, Greek | property owner |
| Landers | male | English | Rough Land |
| Landis | male | American | From the name LANDRY |
| Landon | male | Old English | long hill |
| Lane | female | Middle English | narrow road |
| Lanelle | female | African-American | Narrow Road |
| Lanette | female | N/A | N/A |
| Laney | female | N/A | N/A |
| Lang | male | Old English, Old Norse | long, tall |
| Langer | male | Scandinavian | Tall man |
| Langford | male | English | The person who comes from the long ford. |
| Langley | male | N/A | The famous American astronomer and aeronautical pioneer. |
| Langston | male | English | Town of the Giant |
| Lani | female | Hawaiian | The sky. This girl dog loves the outdoors. |
| Lanikai | female | Hawaiian | heavenlysea |
| Lankston | male | English | Town of the Giant |
| Lanolin | female | N/A | I'm the perfect ointment for your everyday problems. |
| Lantern | male | N/A | I'm so orange, you often wonder if I would glow in the dark. |
| Lantos | male | Hungarian | lute player |
| Lanza | female | Italian | Noble and eager |
| Laoghaire | male | Irish | calf herder, a shepard |
| Laos | female | N/A | A country in southeast Asia that lies on the western border of Vietnam. |
| Laquan | male | N/A | N/A |
| Laqueta | female | African-American | The Quiet One |
| Laquetta | female | Native American | N/A |
| Laquiesha | female | N/A | N/A |
| Laquita | female | N/A | N/A |
| Lara | female | Latin | well-known, name of a nymph |
| Laraine | female | Latin | sea bird |
| Laredo | male | N/A | A city in southern Texas that lies on the Rio Grande. |
| Lareina | female | Spanish | The Queen |
| Larena | female | Greek | Sea bird. |
| Lares | male | N/A | The spirits that guard the household, according to the ancient Romans. |
| Largo | female | N/A | A slow, stately passage of music. |
| Lari | female | English | crowned with laurel |
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