| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 401 | Lajcsi | Teutonic | Famous holiness. | M | |
| 402 | Laji | Teutonic | Famous holiness. | M | |
| 403 | Lajos | Teutonic | Famous holiness. | M | |
| 404 | Lali | Teutonic | Famous holiness. | M | |
| 405 | Lambert | Teutonic | Light of the land. | M | |
| 406 | Lamherto | Teutonic | Light of the land. | M | |
| 407 | Latham | Teutonic | Dwells by the barn. | M | |
| 408 | Learoyd | Teutonic | From the cleared meadow. | M | |
| 409 | Ledyard | Teutonic | Nation's defender. | M | |
| 410 | Len | Teutonic | Lion. | M | |
| 411 | Lennart | Teutonic | Lion. | M | |
| 412 | Leo | Teutonic | Bold for his people. | M | |
| 413 | Leonaldo | Teutonic | Lion. | M | |
| 414 | Leonard | Teutonic | Lion. | M | |
| 415 | Leonardo | Teutonic | Lion. | M | |
| 416 | Leonhard | Teutonic | Lion. | M | |
| 417 | Leopold | Teutonic | Bold for his people. | M | |
| 418 | Leorad | Teutonic | Bold for his people. | M | |
| 419 | Leroy | Teutonic | From the cleared meadow. | M | |
| 420 | Leupold | Teutonic | Bold for his people. | M | |