| Lorenzo | | lo-REN-tso (Italian), lo-REN-tho (Spanish), lo-REN-so (Latin American Spanish) | Italian, Spanish | |
| Loreta | | - | Italian | |
| Loreto | | - | Italian, Spanish | |
| Loretta | | lə-RET-ə (English), lo-RET-tah (Italian) | English, Italian | |
| Loris | | - | Italian | |
| Lorita | | - | Italian | |
| Lotario | | - | Italian | |
| Luana | | loo-AN-ə (English), loo-AH-nah (Italian) | English, Italian, Portuguese | |
| Luca (1) | | LOO-kah (Italian) | Italian, Romanian, German | |
| Luce | | LOO-che (Italian), LOOS (French) | Italian, French | |
| 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 | |
| Luciana | | loo-CHAH-nah (Italian), loo-THYAH-nah (Spanish), loo-SYAH-nah (Latin American Spanish) | Italian, Spanish, Portuguese, Ancient Roman | |
| Luciano | | loo-CHAH-no (Italian), loo-THYAH-no (Spanish), loo-SYAH-no (Latin American Spanish) | Italian, Spanish, Portuguese | |
| Lucilio | | - | Italian | |
| Lucilla | | - | Italian, Ancient Roman | |