| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 421 | Lewis | Teutonic | Famous in war. | M | |
| 422 | Liam | Teutonic | Resolute defender. | M | |
| 423 | Lindsay | Teutonic | From the island of the snakes. | M | |
| 424 | Lindsey | Teutonic | From the island of the snakes. | M | |
| 425 | Lipot | Teutonic | Patriotic. | M | |
| 426 | Lombard | Teutonic | Long - beard. | M | |
| 427 | Lopdda | Teutonic | Patriotic. | M | |
| 428 | Lopold | Teutonic | Patriotic. | M | |
| 429 | Lopoldi | Teutonic | Patriotic. | M | |
| 430 | Lothair | Teutonic | Fighter. | M | |
| 431 | Lothar | Teutonic | Fighter. | M | |
| 432 | Louis | Teutonic | Famous in war. | M | |
| 433 | Luitpold | Teutonic | Bold for his people. | M | |
| 434 | Luther | Teutonic | Famous in war. | M | |
| 435 | Lydon | Teutonic | From the linden tree hill. | M | |
| 436 | Madison | Teutonic | Son of Maud. | M | |
| 437 | Manfred | Teutonic | Mighty peace. | M | |
| 438 | Manfrid | Teutonic | Mighty peace. | M | |
| 439 | Marvin | Teutonic | Mariner. | M | |
| 440 | Marwin | Teutonic | Mariner. | M | |