| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 621 | Lotharing | German | Famous in battle. | M | |
| 622 | Louis | German | Famous fighter. | M | |
| 623 | Luduvico | German | Famous fighter. | M | |
| 624 | Ludwig | German | Famous fighter. | M | |
| 625 | Ludwik | German | Famous fighter. | M | |
| 626 | Lughaidh | German | Famous fighter. | M | |
| 627 | Luigi | German | Famous fighter. | M | |
| 628 | Luiginw | German | Famous fighter. | M | |
| 629 | Luis | German | Famous fighter. | M | |
| 630 | Luki | German | Famous fighter. | M | |
| 631 | Luther | German | Famous people. Derived from the surname of German religious reformer Martin Luther (1483-1546). Famous Bearer: American black civil-rights leader Martin Luther King. | M | |
| 632 | Lutz | German | Famous fighter. | M | |
| 633 | Madelhari | German | War counselor. | M | |
| 634 | Mallory | German | War counselor. | M | |
| 635 | Mandel | German | Almond. | M | |
| 636 | Manfred | German | Man of peace. Peaceful. | M | |
| 637 | Manfried | German | Peaceful. | M | |
| 638 | Manfrit | German | Peaceful. | M | |
| 639 | Margit | German | Pearl. | M | |
| 640 | Markel | German | Of Mars; the god of war. | M | |