| Lovro | | - | Slovene, Croatian | |
| LuĈJo | | LOO-chyo | Esperanto | |
| Luana | | loo-AN-ə (English), loo-AH-nah (Italian) | English, Italian, Portuguese | |
| Luba | | - | Russian, Ukrainian | |
| Lubbert | | - | Frisian | |
| Luben | | - | Bulgarian | |
| Lubomir | | - | Bulgarian | |
| LucÍA | | loo-THEE-ah (Spanish), loo-SEE-ah (Latin American Spanish) | Spanish | |
| Luca (1) | | LOO-kah (Italian) | Italian, Romanian, German | |
| Luca (2) | | LOO-tsah (Croatian) | Hungarian, Croatian | |
| Lucanus | | - | Ancient Roman | |
| Lucas | | LOO-kəs (English), LUY-kahs (Dutch), luy-KAH (French), LOO-kəsh (Portuguese), LOO-kahs (Spanish) | English, Dutch, French, Portuguese, Spanish, Biblical Latin | |
| Luce | | LOO-che (Italian), LOOS (French) | Italian, French | |
| Lucho | | - | Spanish | |
| Lucia | | loo-CHEE-ah (Italian), LOO-tsee-ah (German), LOO-shə (English), loo-SEE-ə (English) | Italian, German, English, Swedish, Norwegian, Danish, Romanian, Slovak, Ancient Roman | |