| Name | Meaning |
| Ladd | Attendant |
| Laidley | Path Along The Marshy Meadow |
| Lain | A Form of Lane |
| Lake | Lake |
| Landan | A Form of Landon |
| Landen | A Form of Landon |
| Landin | A Form of Landon |
| Landon | Open, Grassy Meadow |
| Landry | Ruler |
| Lane | Narrow Road |
| Langdon | Long Hill |
| Langford | Long Ford |
| Langston | Long, Narrow Town |
| Lars | Crowned with Laurel , Victory |
| Lathrop | Barn, Farmstead |
| Latimer | Interpreter |
| Lawford | Ford On The Hill |
| Lawley | Low Meadow On A Hill |
| Lawrence; Laurence | Crowned with Laurel |
| Lawry | A Familiar Form of Lawrence |
| Lawson | Son of Lawrence |
| Lawton | Town On The Hill |
| Layne | A Form of Lane |
| Layton | A Form of Leighton |
| Lee | A Short Form of Farley. |
| Leighton | Meadow Farm |
| Leland | Signifies Meadow-land. |
| Leonel | Little Lion |
| Lew | A Short Form of Lewis |
| Lewin | A Form of Louis |
| Lex | A Short Form of Alexander |
| Liam | Gaelic Derivative of William, Determined Protector |
| Linc | A Short Form of Lincoln |
| Lincoln | Signifies Settlement By The Pool. |
| Lindell | Valley of The Linden |
| Linden | A Form of Lyndon |
| Lindley | Linden Field |
| Lindon | A Form of Lyndon |
| Linford | Linden Ford |
| Linton | Flax Town |
| Linwood | Flax Wood |
| Lister | Dyer |
| Litton | Town On The Hill |
| Livingston | From Lewin's Town |
| Lleyton | A Form of Leighton |
| Locke | Forest |
| London | Fortress of The Moon. |
| Lord | Noble Title |
| Lorry | A Form of Laurie |
| Louvain | Lou's Vanity |
| Lovell | A Form of Lowell |
| Lowell | Beloved |
| Loyal | Faithful, Loyal |
| Ludlow | Prince's Hill |
| Lyman | Meadow |
| Lyndal | Valley of Lime Trees |
| Lynden | A Form of Lyndon |
| Lyndon | Suggests Linden Tree Hill |
| Christian Baby Boy Names Starting with Letter |
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