| Louisa | | loo-EEZ-ə (English), loo-EES-ə (English) | English, German, Dutch | |
| Louise | | loo-EEZ (French, English), loo-EE-se (Danish) | French, English, Danish, Swedish, Dutch | |
| Lourens | | - | Frisian, Dutch | |
| Lowie | | - | Dutch | |
| Lucas | | LOO-kəs (English), LUY-kahs (Dutch), luy-KAH (French), LOO-kəsh (Portuguese), LOO-kahs (Spanish) | English, Dutch, French, Portuguese, Spanish, Biblical Latin | |
| Ludger | | LUD-gər (Dutch) | German, Dutch | |
| Ludo | | - | Dutch | |
| Ludolf | | LOO-dawlf (German) | German, Dutch, Ancient Germanic | |
| Luuk | | LUYK | Dutch | |
| Luus | | LUYS | Dutch, Limburgish | |
| Lysanne | | - | Dutch | |
| Maaike | | - | Dutch | |
| Maarten | | MAH:R-tən | Dutch | |
| Maartje | | MAH:R-tyə | Dutch | |
| Maas | | MAH:S | Dutch | |