| Name | Total | Name | Total | Name | Total | Name | Total | Name | Total |
|---|
| Lieds | 1 | Leuchars, De | 1 | Llewenny | 2 | Lieneke | 2 | LeBrun | 1 |
| Lee | 133 | Loire, du | 6 | Lethra | 1 | Lecure | 1 | Lamech | 1 |
| Lewis | 258 | Louvain | 5 | Lutitz, de | 2 | Love | 5 | Leah | 1 |
| Langford | 3 | Luxemburg | 4 | Limerick | 1 | Loveall | 2 | Lawha | 1 |
| Lytle | 6 | Lanvallei, de | 4 | Louise | 10 | Lynes | 2 | Laidrach | 1 |
| LaRue | 1 | LaGasse | 1 | Levenson-Gower | 1 | Lencioni | 1 | Leimeadhain | 1 |
| LaTrey | 2 | Liz, St. | 6 | Louis | 11 | Leonard | 6 | Luire | 1 |
| Lindsey | 4 | Longsepee | 3 | Laval, de | 1 | Levengood | 3 | Larcombe | 1 |
| Luxton | 1 | Lens | 4 | Longwy, de | 1 | Linnenbrink | 1 | Lyte | 1 |
| Lacey | 9 | Lorraine | 23 | Luxembourg, de | 4 | Lepper | 2 | Lyderic | 1 |
| Lamping | 1 | Langres | 1 | Longueville, de | 4 | Lucas | 4 | Lisle | 2 |
| Lewes | 1 | Londres, de | 10 | Louise-Adelaide | 1 | Lumpkin | 4 | Lodbrock | 1 |
| Lacy | 4 | Lacy, de | 15 | Luisa | 6 | Lane | 22 | LaZouche | 4 |
| LNU | 48 | Lucy, de | 4 | Lecce, di | 1 | Lens, De | 1 | Lyle | 16 |
| Lynchburg | 1 | Leopold | 6 | Luxembourg | 6 | Laurence | 1 | Linda | 1 |
| Levi | 1 | Leinster | 14 | Luis | 2 | Lilly | 6 | Lowth | 1 |
| Leger, St. | 2 | Limoges, de | 5 | Lucca | 1 | Lund | 3 | Lippitt | 1 |
| Lloyd | 16 | Llywarch | 2 | Leczczynska | 1 | Leicester | 1 | Levitt | 3 |
| Law | 6 | Lorraine, de | 21 | Louise-Elizabeth | 1 | Laughlin | 2 | Leuken | 5 |
| Ludlow | 1 | Lower-Alsace | 4 | Louise-Diane | 1 | Lockhart | 1 | Leygia | 1 |
| Langbourne | 3 | Lawrence, St. | 1 | Louise-Henriette | 1 | Lipscomb | 4 | Lowdham | 2 |
| Lanier | 1 | Laskaris | 2 | Leopoldina | 1 | Lomax | 2 | Lanphere | 3 |
| Leetch | 1 | Leix | 1 | Ludovica | 1 | Layton | 14 | Loyer | 1 |
| Lancaster | 7 | Louvain, de | 2 | Leopoldine | 1 | Lathram | 1 | Lyon | 1 |
| Lathom | 1 | Louvaine | 5 | Liechtenstein | 2 | Lyman | 3 | Lively | 4 |
| Leupold | 1 | Llewellyn | 4 | Ludwig | 2 | Lockett | 4 | Lehmann | 24 |
| Lawrence | 30 | Lancaster, de | 4 | Ligne, de | 1 | Llewelyn | 3 | Lorenz | 2 |
| Louthe | 2 | Lis, St. | 4 | Leigh | 10 | Lewis(Cedar Creek) | 1 | Laura | 1 |
| Landolt | 2 | Leon, de | 10 | Lennox | 5 | Lewis(Warner Hall) | 2 | Lowery | 2 |
| Lamberton | 1 | Louvaine, de | 3 | Lanion | 1 | Lewis(Byrd) | 1 | Lohman | 1 |
| Lindsay | 15 | Lainez | 7 | Langdon | 1 | Lombard | 1 | Loyd | 1 |
| Lightfoot | 2 | Lain | 2 | Lea, De | 3 | Leete | 3 | Loewe | 3 |
| Leith | 4 | Limburg, de | 6 | Lea | 3 | Latham | 3 | Landry | 3 |
| Ludwell | 11 | Luxemburg, de | 16 | Lucia | 1 | Lawthrop | 4 | Lisenby | 3 |
| Lamar | 4 | Lara, de | 4 | Leofric | 1 | Lumley | 4 | Luecke | 2 |
| Liao | 1 | Ludmilla | 2 | Lofwin | 1 | Linnell | 1 | Liberty | 10 |
| Lusignan, de | 32 | Longwy | 2 | Lawton | 3 | Lombard(Lumbert) | 1 | Lugenheim | 1 |
| Leon | 48 | Locke | 3 | Ludlow, De | 6 | Linder | 2 | - | - |
| Lovel | 5 | Leob | 1 | Lambert | 4 | Longjohn | 2 | - | - |
| Latimer | 3 | Lavanthal | 4 | Legh, De La | 3 | Loches | 1 | - | - |
| Longsepee, de | 6 | Liege | 1 | Lamb | 1 | Leney | 7 | - | - |
