| Laban | Hebrew | White. |
| Label | Hebrew | lion |
| Laborc | Hungarian | brave panther |
| Lachlan | Scottish Gaelic | From the land of the lochs. |
| Lacy | Old French | Lace. |
| Ladd | English | A page or attendant. |
| Ladislav | Slavonic | A glorious ruler, or glorious power. Also see Vladislav. |
| Ladomar | Hungarian | trapper |
| Lae | Laos | dark |
| Laertes | Greek | A legendary figure. |
| Lafayette | French | Faith. |
| Lafeu | From Shakespeare's play All's Well that Ends Well. | |
| Lai | Sanskrit | The beloved one. |
| Laibrook | Old English | The path by the brook. |
| Laidley | Old English | From the water meadow. |
| Laird | Scottish Gaelic | Head of household. |
| Lakota | Native American | friend |
| Lakshman | Sanskrit | Auspicious. |
| Lakshya | Hindu | target |
| Lalit | Hindu | |
| Lam | Vietnamese | full understanding; knowledge |
| Laman | happy, content | |
| Lamar | Teutonic | Famous around the land. |
| Lambert | Teutonic | From the bright or famous land. |
| Lamberto | Latin | wealthy in land, brilliant |
| Lamech | Hebrew | Strong or powerful. |
| Lamont | Old Norse/French | Old Norse: A lawyer. French: The mount. |
| Lance | Old French | A lance bearer. Also see Lancelot. |
| Lancelot | Old French/Old English | A spear or lance attendant. The most famous of king Arthur?s knights. |
| Lander | Middle English, Greek | property owner; lion man |
| Landers | Old French | A launderer. |
| Landon | Old English | From the long hill. |
| Lane | Old English | From the narrow road. A boy or girl's name. |
| Lang | Teutonic | A tall man. |
| Langford | Old English | From the long ford. |
| Langley | Old English | From the long meadow. |
| Langston | Old English | The farm of the tall man. |
| Langworth | Old English | From the long enclosure. |
| Lani | Polynesian | The sky. A boy or girl's name. |
| Lann | Celtic | A sword. |
| Lanny | Old English | From the rocky land. |
| Lantos | Hungarian | lute player |
| Lanyon | Cornish | A cold pool or lake. |
| Laoghaire | Irish | calf herder, a shepard |
| Laris | Latin | Cheerful. |
| Larrie | Latin | From the Laurel tree or crowned with laurels. Nickname of Laurence. |
| Larry | Latin | From the Laurel tree or crowned with laurels. Nickname of Laurence. |
| Lars | Scandinavian | Scandinavian form of Laurence. From the Laurel tree or crowned with laurels. |
| Larson | Scandinavian | The son of Lars. From the Laurel tree or crowned with laurels. Also see Laurence. |
| Lartius | From Shakespeare's play Coriolanus. | |
| Lascelles | Old French | The hermitage or cell. |
| Lasse | Finnish | Finnish form of Laurence. |
| Laszlo | Hungarian | Hungarian form of Ladislav. A glorious ruler, or glorious power. |
| Latham | Old Norse | A division. |
| Latif | Arabic | Kind and gentle. |
| Latimer | Old French | An interpreter or teacher. |
| Lauchlan | Scottish Gaelic | From the land of the lochs. |
| Laughlin | Scottish Gaelic | From the land of the lochs. |
| Launce | Old French | A lance bearer. Also see Lancelot. |
| Launcelot | Old French/Old English | A spear or lance attendant. |
| Laurence | Latin | From the Laurel tree or crowned with laurels. |
| Laurie | Latin | From the Laurel tree or crowned with laurels. |
| Lavache | From Shakespeare's play All's Well that Ends Well. | |
| Lawford | Old English | From the ford by the hill. |
| Lawler | Irish Gaelic | The mumbler, the soft-spoken one. |
| Lawley | Old English | From the meadow on the hill. |
| Lawrance | Latin | From the Laurel tree or crowned with laurels. |
| Lawrence | Latin | From the Laurel tree or crowned with laurels. |
| Lawson | Old English | The son of Lawrence or Laurence. From the Laurel tree or crowned with laurels. |
| Lawton | Old English | From the town on the hill. |
| Laxman | Sanskrit | Auspicious. |
| Layland | Greek | Protector of men. From the name Alexander, but also an independent name. |
| Layton | Old English | The dweller at the farm by the meadow. |
| Lazarus | Hebrew | God is my help. The man who Jesus raised from the dead in the Bible. |
| Leal | Old English | Loyal and true. |
| Leander | Greek | The lion man. The name of a hero in Greek legend. Also see Leo, Leonard and Lionel. |
| Lear | Teutonic | Joyful, or from the sea. |
| LeBeau | From Shakespeare's play As You Like It. | |
| Lech | Polish | The name of the legendary founder of Poland. |
| Lee | Old English | A meadow or clearing. A boy or girl's name. |
| Lehel | Hungarian | breathes |
| Leif | Old Norse | Beloved, or a descendant, an heir. |
| Leigh | Old English | A meadow or clearing. A boy or girl's name. |
| Leighton | Old English | The dweller at the farm by the meadow. |
| Leith | Scottish Gaelic | A broad river. A Scottish placename. |
| Lel | Hungarian | bugler |
| Leland | Old English | From the meadowland. |
| Lemuel | Hebrew | Devoted to God. |
| Len | Scottish Gaelic | From a Scottish district and a surname. From the name Lennox, Leonard, etc. Len is sometimes used as an independent name. |
| Lennie | Scottish Gaelic | From a Scottish district and a surname. From the name Lennox, Leonard, etc. Lennie is sometimes used as an independent name. |
| Lennon | Irish Gaelic | A little cape or cloak. |
| Lennox | Scottish Gaelic | From a Scottish district and a surname. |
| Lenny | Scottish Gaelic | From a Scottish district and a surname. From the name Lennox, Leonard, etc. Lenny is sometimes used as an independent name. |
| Lensar | English | with his parents |
| Leo | Latin | A lion, lion-hearted. Also see Leander, Leonard, Leopold and Lionel. |
| Leon | Latin | A lion, lion-hearted. Also see Leander, Leonard, Leopold and Lionel. |
| Leonard | Germanic | As brave as a lion. Also see Leander, Lionel and Leo. |
| Leonardo | Italian/Portuguese/Spanish | As brave as a lion. Also see Leander, Lionel and Leo. |
| Leonato | From Shakespeare's play Much Ado About Nothing. | |
| Leonidas | Greek | one who is bold as a lion |
| Leonine | From Shakespeare's play Pericles. | |
| Leontes | A character in William Shakespeare's Winter's Tale. | |
| Leopold | Teutonic | Brave for the people, patriotic. The name of kings of Belgium and bohemia. |
| Leron | Arabic | the song is mine |
| Leroy | French | The king. Also see Elroy. |
| Leshem | Hebrew | precious stone |
| Lesley | Scottish Gaelic | From an ancient surname. A boy or girl's name. |
| Leslie | Scottish Gaelic | Meadowlands. |
| Lesta | Russian | Lestie |
| Lester | Old English | From the place name Leicester, meaning a Roman site or fort. |
| Lev | Russian | A lion, lion-hearted. Also see Leander, Leonard, Leopold and Lionel. |
| Levent | Turkish | |
| Levente | Hungarian | being |
| Leverett | Old French | A young hare. |
| Leverton | Old English | From the farm of the rushes. |
| Levi | Hebrew | United. |
| Levin | Latin | A lion, lion-hearted. Also see Leander, Leonard, Leopold and Lionel. |
| Lewie | Teutonic | A famous warrior. From the name Aloysius, Lewis and Louis. |
| Lewis | An English variation of Louis. Also an anglicised form of the Welsh name Llewellyn. | |
| Lex | Greek | Protector of men. From the name Alexander, but also an independent name. |
| Leyman | Old English | A man from the meadow or valley. |
| Li | Chinese | Strength. |
| Liall | Old French | From the island. |
| Liam | Irish Gaelic | Determined guardian. |
| Lief | Old Norse | Beloved, or a descendant, an heir. |
| Lincoln | Old English | The settlement at the lake or pool. |
| Lind | Old English | From the hill of the Lime trees. |
| Lindan | Old English | From the hill of the Lime trees. |
| Lindberg | Teutonic | The hill of the Lime trees. |
| Lindell | Old English | From the valley of Lime trees. |
| Linden | Old English | From the hill of the Lime trees. |
| Lindley | Old English | From the Lime tree meadow. A boy or girl's name. |
| Lindsay | Scottish | From an old Scottish clan surname. |
| Linford | Old English | From the Lime tree ford. |
| Linley | Old English | From the field of Flax. A boy or girl's name. |
| Linton | Old English | From the Flax farm or enclosure. |
| Linus | Greek | Flaxen-haired. |
| Linwood | Old English | stream forest |
| Lionel | Old French | A young lion. Also see Leander, Leo and Leonard. |
| Lipet | Hungarian | brave |
| Lisle | French | From the island. |
| Litton | Old English | From the place on the river. |
| Livingston | Old English | A dear friend's place. |
| Ljluka | Sanskrit | An owl. |
| Llewellyn | Welsh | Lion-like, a leader or ruler. |
| Llfryn | An unusual Welsh name. | |
| Lloyd | Welsh | Grey-haired. |
| Lobsang | Tibetan/Sherpa | The kind-. Hearted one. |
| Loch | Scottish Gaelic | A lake. |
| Locke | Old English | From the stronghold. |
| Lockwood | Old English | From the enclosed wood. |
| Lodovico | From Shakespeare's play Othello. | |
| Logan | Scottish Gaelic | Small cove. |
| Lokesh | Hindu | |
| Loman | Irish Gaelic | Enlightened. The name of several early Irish saints. |
| Lombard | Latin | Long-bearded. |
| Lome | English/Scottish | From a placename in Scotland. Also see Laurence. |
| Lon | From the name the names Alphonso and Laurence. | |
| London | English | fierce ruler of the world |
| Longaville | From Shakespeare's play Love's Labour Lost. | |
| Lonnie | Handsome one. | |
| Lorand | Hungarian | brave warrior |
| Lorant | Hungarian | A form of Roland. |
| Loren | Latin | From the Laurel tree or crowned with laurels. A boy or girl's name. |
| Lorenz | German | From the Laurel tree or crowned with laurels. |
| Lorenzo | Italian | From the Laurel tree or crowned with laurels. |
| Lorimer | Old French | A harness and spur-maker. |
| Lorin | Latin | From the Laurel tree or crowned with laurels. |
| Lorinc | Hungarian | Laurentian |
| Loring | Teutonic | A man from Lorraine, a former French province (now part of Alsace-Lorraine). |
| Lorne | Celtic | of Lorne |
| Lothair | Teutonic/Old French | Tuetonic: A famous warrior. Old French: A lute player. |
| Lothar | German | A famous warrior. |
| Lothario | Italian | A famous warrior. |
| Loughlin | Scottish Gaelic | From the land of the lochs. |
| Louis | Teutonic | A famous warrior. A name borne by sixteen French kings. Also see Lewis. |
| Lovel | Old French | A little wolf. |
| Lovell | Old French | A little wolf. |
| Lowan | Aboriginal | A mallee fowl. A boy or girl's name. |
| Lowell | Old French | A little wolf. |
| Loxley | Old English | The place of a lock of hair. |
| Loyal | Old French | True, faithful. |
| Luc | French | A man from Lucania. |
| Lucas | Greek | A man from Lucania. |
| Lucentio | From Shakespeare's play Taming of the Shrew. | |
| Lucian | Latin | Person of Light. A boy or girl's name. |
| Lucilius | Latin | Light. Also see Luke. |
| Lucio | Italian/Spanish | Light. Also see Luke. |
| Lucius | From Shakespeare's play Julius Caesar, Timon of Athens and Titus Andronicus. | |
| Lucretius | Latin | Gain. An early Roman poet. |
| Lucullus | From Shakespeare's play Timon of Athens. | |
| Ludlow | Old English | From the prince's hill. |
| Ludovic | Scottish | An English variation of Louis. |
| Ludvig | Scandinavian | A famous warrior. |
| Ludwig | German | A famous warrior. |
| Ludwik | Polish | A famous warrior. |
| Luigi | Italian | A famous warrior. |
| Luis | Portuguese/Spanish | A famous warrior. |
| Luke | Greek | A man from Lucania. One of Christ's apostles, and the author of the third book of the New Testament. Also see Lucian. |
| Lundy | French | Born on Monday. Also the name of an island off the coast of England. |
| Lunt | Old Norse | From the sacred wood. |
| Luther | Teutonic/Old French | Tuetonic: A famous warrior. Old French: A lute player. |
| Luzio | Italian | Light. Also see Luke. |
| Lykaios | Greek | wolfish, of a wolf, wolf-like |
| Lyle | Old French | From the island. |
| Lyman | Old English | A man from the meadow or valley. |
| Lymoges | From Shakespeare's play King John. | |
| Lyn | Welsh | Good looking. A boy or girl's name. |
| Lyndell | Old English | From the valley of Lime trees. |
| Lyndon | Old English | From the hill of the Lime trees. |
| Lynn | Old English/Welsh | Old English: A waterfall. Welsh: Good looking. A boy or girl's name. |
| Lyonel | Old French | A young lion. Also see Leander, Leo and Leonard. |
| Lyre | Old English | a fork from river or glen |
| Lysander | Greek | The liberator. A boy or girl's name. |
| Lysimachus | From Shakespeare's play Pericles. | |
| Lytton | Old English | From the place on the river. |