| Name | Insgesamt | Name | Insgesamt |
|---|---|---|---|
| Lürki | 1 | Lutta | 2 |
| Lürtzing | 1 | Luttenbacher | 1 |
| Lüscher | 56 | Luttier | 1 |
| Lusse, de | 1 | Luttner | 2 |
| Lusser | 2 | Lutz | 679 |
| Lüssi | 7 | Lutz? | 1 |
| Lüssli | 1 | Lutze | 2 |
| Lusson | 1 | Lützelmann | 87 |
| Lüssy | 3 | Lützelstein, von | 1 |
| Lütelsdorf, von | 1 | Lützler | 6 |
| Lutenbach | 1 | Lux | 1 |
| Lütener | 1 | Luxemburg, von | 1 |
| Lutensbacher | 12 | Luya | 1 |
| Luterbach | 5 | Luyrieu, von | 9 |
| Luterbacher | 2 | Luz | 2 |
| Luterer | 5 | Luz Monzon, de la | 1 |
| Luternau | 1 | Luz, de | 1 |
| Luternau, von | 249 | Luze, de | 29 |
| Luterrieder | 2 | Luzia | 1 |
| Luterweck | 7 | Lyanna | 29 |
| Luterwein | 12 | Lyeur | 1 |
| Luterysen | 1 | Lyeur, Le | 2 |
| Lütgendorff-Leinburg, von | 1 | Lygny, de | 1 |
| Lüthardt | 101 | Lyhringer? | 1 |
| Lüthe | 1 | Lynden Tot Blitterswijk, van | 2 |
| Lüthi | 190 | Lynden van Sandenburg, van | 2 |
| Lüthin | 9 | Lynden-Hoevelaeken, de | 1 |
| Lüthold | 5 | Lynden, van | 6 |
| Luthringshauser | 1 | Lyner | 2 |
| Lüthy | 50 | Lyon | 1 |
| Lutier | 1 | Lyonardi | 3 |
| Lütiger | 3 | Lyoth | 57 |
| Lütinger | 1 | lyri | 1 |
| Lütishofen, von | 1 | Lyrimann | 2 |
| Lütolf | 2 | Lyser | 43 |
| Lutot, de | 1 | Lysle | 1 |
| Lutry, de | 5 | Lysser | 11 |
| Lütschg | 11 | Lytle | 1 |
| Lutsch, von | 1 | l’Abbé | 1 |
| Lutstorf | 263 | L’Ecuyer | 1 |